Relevant bibliographies by topics / Echinoidea

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Echinoidea'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2025

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Journal articles on the topic "Echinoidea"

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Sun, Shao’e, Ning Xiao, and Zhongli Sha. "Complete mitochondrial genomes of four deep-sea echinoids: conserved mitogenome organization and new insights into the phylogeny and evolution of Echinoidea." PeerJ 10 (July 28, 2022): e13730. http://dx.doi.org/10.7717/peerj.13730.

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Echinoids are an important component in benthic marine environments, which occur at all depths from the shallow-water hard substrates to abyssal depths. To date, the phylogeny of the sea urchins and the macro-evolutionary processes of deep-sea and shallow water groups have not yet been fully resolved. In the present study, we sequenced the complete mitochondrial genomes (mitogenomes) of four deep-sea sea urchins (Echinoidea), which were the first representatives of the orders Aspidodiadematoida, Pedinoida and Echinothurioida, respectively. The gene content and arrangement were highly conserved in echinoid mitogenomes. The tRNA-SerAGY with DHU arm was detected in the newly sequenced echinoid mitogenomes, representing an ancestral structure of tRNA-SerAGY. No difference was found between deep-sea and shallow water groups in terms of base composition and codon usage. The phylogenetic analysis showed that all the orders except Spatangoida were monophyletic. The basal position of Cidaroida was supported. The closest relationship of Scutelloida and Echinolampadoida was confirmed. Our phylogenetic analysis shed new light on the position of Arbacioida, which supported that Arbacioida was most related with the irregular sea urchins instead of Stomopneustoida. The position Aspidodiadematoida (((Aspidodiadematoida + Pedinoida) + Echinothurioida) + Diadematoida) revealed by mitogenomic data discredited the hypothesis based on morphological evidences. The macro-evolutionary pattern revealed no simple onshore-offshore or an opposite hypothesis. But the basal position of the deep-sea lineages indicated the important role of deep sea in generating the current diversity of the class Echinoidea.
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GONDIM, ANNE ISABELLEY, RAFAEL BENDAYAN DE MOURA, MARTIN LINDSEY CHRISTOFFERSEN, and THELMA LÚCIA PEREIRA DIAS. "Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil." Zootaxa 4529, no. 1 (December 10, 2018): 1. http://dx.doi.org/10.11646/zootaxa.4529.1.1.

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The class Echinoidea contains among the best-known echinoderms. The group has left the most complete fossil record of this phylum, and contains about 1000 living species, of which 51 are recorded along the Brazilian coast. Although the first record of echinoids in Brazil was made 369 years ago, the knowledge of this fauna remains quite unsatisfactory from a taxonomic and ecological point of view, particularly in the north and northeastern regions of the country. This study provides the first annotated list of echinoids from northeastern Brazil. The studied material largely belongs to collections of the Federal University of Paraíba (CIPY), Federal University of Sergipe (LABIMAR-UFS), Federal University of Bahia (MZUFBA), University of São Paulo (MZUSP), and National Museum of the Federal University of Rio de Janeiro (MNRJ). Thirty-two species from 29 genera, 18 families, and 10 orders were identified. Descriptions of species are provided. Highest diversities of Echinoidea were encountered for the states of Bahia (19 spp.), Alagoas (11 spp.), Paraíba (10 spp.), Ceará (7 spp.), Rio Grande do Norte (7 spp.), and Pernambuco (6 spp.). On the basis of the data analysed, Maranhão (2 spp.), Piauí (2 spp.), and Sergipe (3 spp.) have the lowest diversity. Sandy substrates and depths below 10 m were the least sampled areas over the continental shelf. Although the studied species are common, some taxonomic problems were encountered and discussed. We also provide ecological information and comments on status of the species from the studied region. As a result of this inventory, we were able to provide the first assessment of the echinoid fauna of northeastern Brazil.
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Xavier, Juan Henrique Bueno, Sandro Marcelo Scheffler, Aline Marcele Ghilardi, Cynthia Lara de Castro Manso, and Claude Luiz de Aguilar Santos. "EQUINOIDES DA FORMAÇÃO JANDAÍRA, CRETÁCEO SUPERIOR DA BACIA POTIGUAR, NORDESTE DO BRASIL: ESTADO DA ARTE." PALEONTOLOGIA EM DESTAQUE - Boletim Informativo da Sociedade Brasileira de Paleontologia 37, no. 77 (July 10, 2023): 55–69. http://dx.doi.org/10.4072/paleodest.2022.37.77.03.

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Echinoids from Jandaíra Formation, Upper Cretaceous, Potiguar Basin, Northeastern Brazil. The present paper analyzes the studies about fossil echinoids from the Jandaíra Formation, Upper Cretaceous, Potiguar Basin, Northeastern Brazil, with the purpose of showing the current knowledge about the species of the geological unit. The bibliography was obtained by searching websites such as Scholar Google, Memória da Biblioteca Nacional, Biodiversity Heritage Library, and Periódicos Capes. Furthermore, we contacted several researchers in the area of study, looking for access to any missing bibliography. We surveyed 32 studies, including monographs, dissertations, abstracts, papers in scientific journals, and book chapters. A timeline was produced for each species. We concluded that are fourteen valid species for the formation: Petalobrissus lehugeurae Alves; Petalobrissus setifensis Cotteau; Petalobrissus cubensis Weisbord; Mecaster texanus Roemer; Mecaster fourneli Agassiz & Desor; Hemiaster cearensis Brito; Hemiaster catandubensis Maury; Mecaster sp.; Rosadosoma riograndensis (Maury); Phymosoma major Coquand; Goniopygus durandi Perón & Gauthier; Coenholectypus upanemensis Beurlenou, Coenholectypus serialis sp.?; Phymosoma sp.; and Pygorhynchus sp.?. A considerable diversity. However, apart from taxonomy, few studies address other subjects such as paleoecology, taphonomy, biogeography, and stratigraphy. The observations raised, help to understand the taxonomic history of the echinoid species. Accordingly, they might indicate the direction of future studies about echinoids of the Jandaíra Formation. Keywords: Echinodermata, Echinoidea, Taxonomy, Upper Cretaceous.
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Kroh, Andreas. "Echinoids (Echinoidea, Echinodermata) from Štramberk-type limestones in Poland." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 276, no. 2 (May 1, 2015): 213–27. http://dx.doi.org/10.1127/njgpa/2015/0489.

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SAUCÈDE, THOMAS, RICH MOOI, and BRUNO DAVID. "Phylogeny and origin of Jurassic irregular echinoids (Echinodermata: Echinoidea)." Geological Magazine 144, no. 2 (December 19, 2006): 333–59. http://dx.doi.org/10.1017/s0016756806003001.

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A phylogenetic analysis of Jurassic irregular echinoids is realized to explore the origin and early evolution of this important subset of echinoids. The phylogeny is based on 39 characters and considers data from apical system architecture, the corona including tuberculation and spines, Aristotle's lantern, and general test shape. Results corroborate the monophyly of Irregularia, and clarify the phylogenetic interrelationships existing between the main groups of irregular echinoids. Specializations of the Aristotle's lantern, spines, tubercles and phyllodes constitute the apomorphies for different taxa, as for the whole of Irregularia. The phylogenetic signal yielded by these characters highlights the importance of the environmental context of the origin and diversification of irregular echinoids. The definition of ‘irregularity’ is re-examined, rejecting exocyclism and characters of the apical system as appropriate synapomorphies, and stressing the importance of other characters, particularly the high density and small size of tubercles and spines. A new clade name, Infraclypeidae [P], and phylocode designations (stem-based diagnoses) are proposed for the clades Irregularia, Eognathostomata, Microstomata, Neognathostomata and Atelostomata. Other groupings formerly used (Pygasteroida, Galeropygidae and Menopygidae) are considered paraphyletic.
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Ilman Huda, Muhammad Aris, S. Sudarmadji, and Susantin Fajariyah. "Keanekaragaman Jenis Echinoidea di Zona Intertidal Pantai Jeding Taman Nasional Baluran." BERKALA SAINSTEK 5, no. 2 (October 13, 2017): 61. http://dx.doi.org/10.19184/bst.v5i2.5531.

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Zona intertidal merupakan daerah yang terletak diantara pasang tertinggi dan surut terendah, yang mewakili peralihan dari kondisi lautan ke kondisi daratan. Luas zona intertidal sangat terbatas, akan tetapi memiliki faktor lingkungan yang sangat bervariasi, sehingga memiliki keanekaragaman organisme yang tinggi salah satunya adalah kelas Echinoidea. Kelas Echinoidea termasuk dalam anggota Filum Echinodermata yang tersebar mulai dari daerah intertidal sampai laut dalam. Echinoidea umumnya menghuni ekosistem terumbu karang dan padang lamun. Pantai Jeding merupakan pantai yang terletak di wilayah Taman Nasional Baluran yang masih belum pernah dilakukan penelitian mengenai keanekaragaman Echinoidea. Penelitian ini bertujuan untuk mengetahui keanekaragaman dan kesamarataan jenis Echinoidea di zona intertidal Pantai Jeding Taman Nasional Baluran. Metode yang digunakan dalam pengambilan sampel adalah metode transek-plot sistematis. Hasil penelitian didapatkan 8 jenis Echinoidea yang terdiri 4 ordo, 6 famili, 8 genus dan 8 spesies. Memiliki indeks Keanekaragaman (H’) jenis yang tergolong sedang dan Indeks kesamarataan (J’) Jenis yang tergolong sedang.Kata Kunci: Zona Intertidal, Echinoidea, Keanekaragaman, Pantai jeding.
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ARACHCHIGE, GAYASHAN M., SEVVANDI JAYAKODY, RICH MOOI, and ANDREAS KROH. "Taxonomy and distribution of irregular echinoids (Echinoidea: Irregularia) from Sri Lanka." Zootaxa 4541, no. 1 (January 3, 2019): 1. http://dx.doi.org/10.11646/zootaxa.4541.1.1.

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The earliest information on Sri Lankan echinoid species belonging to the Irregularia dates back to Alexander Agassiz (1872). However, the current knowledge of diversity and distribution of irregular echinoids from Sri Lanka (formerly Ceylon) remains sparse. In addition, there are no recent taxonomic studies or biodiversity surveys for irregular echinoids, and no illustrated field-guides or reference collections are available specifically for Sri Lanka. To address these gaps, left open for more than 100 years since the work of Clark (1915), this study was conducted as an island-wide systematic sampling survey. Over 200 echinoid specimens were collected from 24 localities in Sri Lankan coastal waters by snorkelling and SCUBA diving down to 33 m depth. The collected specimens were identified using existing keys and authenticated with specimens available at the Natural History Museum in Vienna, Austria. The present study records 22 irregular echinoid species belonging to 15 genera and nine families in four orders. Among the identified irregular echinoids, six species, Echinocyamus megapetalus H.L. Clark, 1914, Fibularia ovulum Lamarck, 1816, Fibulariella angulipora Mortensen, 1948, Echinodiscus cf. truncatus L. Agassiz, 1841, Peronella oblonga Mortensen, 1948 and Brissus cf. agassizii Döderlein, 1885, are new records for Sri Lanka. Four unidentified, possibly new species belonging to the genera Fibularia, Jacksonaster and Metalia are reported, but kept in open nomenclature until more material becomes available. At present, the diversity of irregular echinoids from Sri Lanka now stands at 37 species representing 11 families in four orders. A dichotomous key is presented for all Sri Lankan irregular echinoids.
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Guilherme, Pablo Damian Borges, Maristela de Lima Bueno, Rafael Metri, Cassiana Baptista-Metri, Robin Hilbert Loose, and Yara Aparecida Garcia Tavares. "First record of the heart urchin Plagiobrissus grandis (Gmelin, 1791) (Echinodermata: Echinoidea) in the coastal region of Paraná, southern Brazil." Papéis Avulsos de Zoologia 63 (August 1, 2023): e202363026. http://dx.doi.org/10.11606/1807-0205/2023.63.026.

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This study presents the first record of the cordiform echinoid Plagiobrissus grandis (Gmelin, 1791) (Echinoidea: Spatangoida: Brissidae) in Paraná’s shallow inner shelf, in addition to a brief description of its location, body measurements, sex determination, and reproductive status. Two specimens were recorded between 2015 (bycatch by artisanal fishing) and 2016 (observed by scuba diving). The only specimen – with severe signs of weakness – captured was donated to Associação MarBrasil and kept in an aquarium for rehabilitation (8 days), where it was possible to observe digging movements, burying skills (partially), and camouflage or covering behavior. The organism was sent to the UNESPAR campus of Paranaguá and was photographed, measured (length: 155.65 mm, width: 118.93 mm, and maximum test height: 41.31 mm), fixed, and properly preserved. Digitized images of the histological preparation showed that it was a female in the recovery stage (or nutritional reserve) of the reproductive cycle. Regardless of their limitations, the current records for the Brissidae family in South Atlantic are still concentrated on the Brazilian coast, contributing to the understanding of zoogeographic, ecological, morphophysiological, and behavioral aspects of the spatangoid echinoids.
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ZUSCHIN, MARTIN. "Echinoidea neogenica." Lethaia 40, no. 2 (May 17, 2007): 199. http://dx.doi.org/10.1111/j.1502-3931.2007.00018.x.

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Coombs, Christopher J., and Keith L. Mutimer. "ECHINOIDEA TENOSYNOVITIS." ANZ Journal of Surgery 63, no. 4 (April 1993): 309–11. http://dx.doi.org/10.1111/j.1445-2197.1993.tb00389.x.

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Dissertations / Theses on the topic "Echinoidea"

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Wangensteen, Fuentes Owen S. "Biology and phylogeography of the black sea urchin Arbacia lixula (Echinoidea: Arbacioida) / Biología y filogeografía del erizo de mar negro Arbacia lixula (Echinoidea: Arbacioida)." Doctoral thesis, Universitat de Barcelona, 2013. http://hdl.handle.net/10803/120483.

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The black sea urchin Arbacia lixula (Linnaeus, 1758) is one of the most abundant sea urchins in the Mediterranean. Despite its increasingly recognized ecological significance, including the ability to create and maintain barren zones of decreased diversity and productivity, it has been traditionally less studied than the Atlanto-Mediterranean edible sea urchin Paracentrotus lividus. This thesis is aimed at studying the factors affecting the phylogeography, trophic ecology and biology of the black sea urchin A. lixula in Mediterranean ecosystems, in order to assess its ecological role and its possible future impact in benthic communities. We studied the phylogeography, the trophic relationships, the reproductive cycle and the effects of temperature and ocean acidification on larval development of A. lixula. Our phylogeographical study, based in the mitochondrial marker COI, found evidences of a relatively recent (94 – 205 kya) colonization of the Mediterranean by A. lixula. Our trophic study, using stable isotopes and gut contents analyses, showed that A. lixula is an omnivore tending to carnivory, feeding mainly on sessile invertebrates. This results challenge the previous belief that A. lixula was an herbivorous grazer of encrusting coralline algae. The results of the reproductive cycle study, followed up during four consecutive years, showed that the reproductive timing of A. lixula is regulated by photoperiod, while temperature is a main modulator of its gonad development and thus of its reproductive output. The study of larval development in different conditions of temperature and pH showed that temperature increases accelerated the development and enhanced the larval survival rate, while acidification caused only slight effects in its survival, developmental rate and larval morphology. Considering all these new results about the past history and ecological characteristics of A. lixula, we conclude that this thermophilous species of tropical affinities is probably facing suboptimal conditions in northern Mediterranean. Its populations in this region may be promoted by global change, since the current warming trend would eventually enhance the processes which are limiting its populations. Thus, the negative impact of A. lixula on the Mediterranean coastal ecosystems may be increased in the future.
El erizo de mar negro Arbacia lixula (Linnaeus, 1758) es, en la actualidad, uno de los equinoideos más abundantes en el Mediterráneo. A pesar de que su importancia ecológica está siendo cada vez más documentada, incluyendo su capacidad para originar y mantener zonas de blanquizal, de diversidad y productividad disminuidas, A. lixula ha sido tradicionalmente menos estudiado que otras especies atlanto-mediterráneas, como el erizo de mar común, Paracentrotus lividus. Esta tesis tiene por objeto el estudio de los factores que afectan a la filogeografía, la ecología trófica y la biología de A. lixula en los ecosistemas mediterráneos, con el fin de investigar su papel ecológico y su potencial impacto futuro en las comunidades bentónicas. Se estudiaron la filogeografía, las relaciones tróficas, el ciclo reproductor y los efectos de la temperatura y de la acidificación del océano en el desarrollo larvario de A. lixula. Nuestro estudio filogeográfico, basado en el marcador mitocondrial COI, mostró evidencias de que A. lixula colonizó el Mediterráneo en tiempos relativamente recientes (hace entre 94,000 y 205,000 años). El estudio de ecología trófica, empleando análisis de isótopos estables y de contenidos digestivos, demostró que A. lixula tiene un comportamiento omnívoro con tendencia a la carnivoría, alimentándose, sobre todo, de invertebrados sésiles. Esto contradice las creencias previas que suponían que esta especie era un herbívoro que se alimentaba de algas coralináceas incrustantes. El estudio de la biología reproductiva de A. lixula, realizado a lo largo de cuatro años consecutivos, mostró que el curso temporal de su ciclo gonadal está regulado por el fotoperíodo, mientras que la temperatura es un importante modulador de su desarrollo gonadal y de su producción de gametos. El estudio del desarrollo larvario, utilizando diferentes condiciones de temperatura y pH, mostró que el aumento de temperatura produce una aceleración en el crecimiento y un aumento en la tasa de supervivencia larvaria, mientras que la acidificación causa sólo efectos menores en la tasa de supervivencia, la velocidad de desarrollo y la morfología larvaria. Considerando estos nuevos resultados sobre la historia evolutiva y las características ecológicas de A. lixula, podemos concluir que esta especie de afinidades tropicales se encuentra, probablemente, sometida en la actualidad a condiciones por debajo de las óptimas en el Mediterráneo septentrional. Sus poblaciones en esta región podrían verse favorecidas por el cambio global, ya que la tendencia al calentamiento actual posiblemente favorecerá, en el futuro, los procesos que están limitando sus poblaciones en la actualidad. Así, el impacto negativo de A. lixula en los ecosistemas costeros mediterráneos podría incrementarse en el futuro.
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Courville, Erwan. "Analyse intégrée de données fossiles et actuelles, morphologiques et moléculaires pour comprendre l’évolution écologique et biogéographique du genre Arbacia Gray, 1835 (Echinoidea) au cours du Cénozoïque." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCK076.

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Cette thèse examine le rôle des facteurs écologiques et historiques dans la distribution biogéographique du genre d’oursin Arbacia (Echinoidea, Arbacioida). Le projet est structuré en trois volets. D’abord, la révision taxonomique du genre, qui a révélé une diversité morphologique plus vaste que prévu, avec la découverte de sept nouvelles espèces fossiles. Ensuite, des analyses phylogénétiques, basées sur des marqueurs moléculaires, pour résoudre les relations de parenté entre espèces actuelles. Ces analyses ont montré une divergence ancienne entre les espèces atlantiques et pacifiques, bien avant la formation de l'isthme de Panama. Une phylogénie intégrée combinant des données morphologiques et moléculaires a permis d’intégrer les données actuelles et fossiles, soulignant une histoire évolutive complexe. Enfin, les analyses biogéographiques ont permis de montrer que les événements de dispersion ont joué un rôle prépondérant dans l’histoire évolutive du genre Arbacia, avec des événements récurrents de spéciation par dispersion depuis les régions tempérées vers les zones tropicales, notamment le long des côtes californiennes et dans les Caraïbes. Les événements de duplication sont également nombreux suggérant des phénomènes de spéciation sympatrique. La modélisation des niches écologiques des espèces actuelles d’Arbacia, ainsi que d’une espèce fossile, a permis de proposer des hypothèses quant aux rôles des facteurs écologiques dans l’évolution du genre. Contrairement au paradigme selon lequel les tropiques sont des centres d'origine pour la biodiversité marine, les résultats de la thèse montrent que le genre Arbacia s’est diversifié et dispersé principalement à partir des zones tempérées du Pacifique Nord-Est, avant de se disperser vers les régions tropicales
This PhD thesis examines the role of ecological and historical factors in the biogeographical distribution of the echinoid genus Arbacia (Echinoidea, Arbacioida). The project is structured into three parts. First, the taxonomic revision of the genus revealed a higher level of morphological diversity than expected, with the discovery of seven new fossil species. Then, phylogenetic analyses based on molecular markers were performed to resolve the relationships among extant species and showed an ancient divergence between Atlantic and Pacific species predating the formation of the Isthmus of Panama. An integrated phylogeny was constructed combining morphological and molecular data, with both extant and fossil species, highlighting a complex evolutionary history. Finally, biogeographical analyses were performed that showed that dispersal events have played a key role in Arbacia evolutionary history, with recurrent speciation events due to dispersal from temperate regions to tropical zones, especially along the Californian coasts and in the Caribbean. Several duplication events were also highlighted suggesting a role played by sympatric speciation. Ecological niche modeling of both extant and fossil species are clues to set hypotheses about the part played by ecological factors in the genus evolution. Contrary to a paradigm of the tropics as centers of origin for marine biodiversity, PhD results show that Arbacia likely diversified in the temperate Northeast Pacific then dispersed toward tropical regions
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Hétérier, Vincent. "Biodiversité et signification écologique des ectosymbiontes des Cidaridae antarctiques (Echinodermata : Echinoidea)." Dijon, 2007. http://www.theses.fr/2007DIJOS012.

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Les oursins cidaridés caractérisés par l’absence d’épithélium sur leurs piquants primaires, procurent une grande diversité de substrats pour les organismes sessiles, particulièrement en Antarctique. L’inventaire des espèces symbiotiques montre une dominance nette des spongiaires et des bryozoaires et que la diversité des ectosymbiotes fluctue en fonction des espèces hôtes et de la profondeur. Par contre, la distance entre les stations n’influence pas la structure et la composition des communautés symbiotiques. Une analyse morphologique des piquants a été réalisée afin de connaître l’influence de leur forme sur les communautés symbiotiques. Les résultats suggèrent que la colonisation symbiotique est directement liée aux paramètres dimensionnels des piquants (taille & spinosité). Les communautés symbiotiques diffèrent sensiblement de celles des tillites (roches environnantes). Contrairement aux symbiotes, les faunes portées par les tillites sont relativement semblables entre les stations
Cidaroid sea urchins provide a wide range of substrates for sessile organisms, particularly in Antarctic where the availability of hard substrate is a limiting resource. An inventory of Antarctic cidaroid ectosymbionts showed that 62% of ectosymbionts are bryozoans and sponges. Ectosymbiotic specific diversity varied with the host species and depth, but the distance between sampling sites did not affect community structure and composition. Two sets of parameters were defined to determine the influence of cidaroid spine shapes on symbiotic communities. Morphometric analyses showed the existence of a gradient between oral, ambital and apical spines. Symbiont colonization was directly related to dimensional parameters of the spines. Finally, symbiotic communities associated with cidaroids strongly differ from the tillites-associated ones. Taking cidaroid-associated communities into account is therefore necessary to get an exhaustive picture of the Antarctic benthic biodiversity
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Heterier, Vincent. "Biodiversité et signification écologique des ectosymbiontes des Cidaridae antarctiques (Echinodermata :Echinoidea)." Doctoral thesis, Universite Libre de Bruxelles, 2007. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210644.

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Mac, Cord Fábio Sá. "Estratégia reprodutiva e gametogênese de Cassidulus mitis Krau, 1954 (Echinodermata : Echinoidea)." Universidade Federal do Rio de Janeiro, 2001. http://hdl.handle.net/11422/3504.

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CAPES
A ordem Cassiduloida inclui todos os ouriços irregulares que apresentam petalóides, filódios e borrainas ( ou flósculo) (KIER, 1962). Eles possuem, ainda, espinhos curtos e um periprocto disposto posteriormente (MOOI, 1990a). Esta ordem chegou a ser representada por aproximadamente 800 espécies em 67 gêneros. Durante o Eoceno (50 milhões de anos atrás), 60% de todas as espécies de equinóides pertenciam a ordem Cassiduloida (KIER, 1962). Cassidulus mitis Krau é uma espécie endêmica do Rio de Janeiro. Para verificar seu ciclo reprodutivo foram feitas coletas mensais na Praia Vermelha de outubro de 1998 a abril de 2000. A razão sexual encontrada foi de 1:1 (x2= 1.48; a0.05=3.84; DF= l). A reprodução é contínua e não há sincronia entre os indivíduos. O índice gonadal dos machos foi superior ao das fêmeas (x2=18.33, a0.05=3.84). Os machos possuem cinco estágios de desenvolvimento gametogênico: Crescimento, Pré-maduro, Maduro, de Liberação e Estágio de liberação e crescimento concomitante. Os machos não apresentam os estágios de Recuperação e vazio que as fêmeas possuem. Já as fêmeas possuem seis estágios: Recuperação, Crescimento, Pré-maduro, Maduro, de Liberação e Vazio. Todavia, não apresentam o estágio de liberação e crescimento concomitante que ocorre nos machos. O diâmetro médio dos ovócitos foi de 382 μm (DP=49 μm). O número médio de juvenis por fêmea foi de 99.8 indivíduos (DP= l08.25; SE= 16.32). As gônadas anteriores são comumente menores que as posteriores e diferenças nos estágios gametogênicos foram encontradas entre elas. A primeira maturação ocorre em indivíduos a partir de 17mm de diâmetro. O peso úmido do intestino é aproximadamente duas ou três vezes maior que o peso úmido da carapaça. Isto significa que C. mitis utiliza seu intestino como um cinto de lastro para evitar seu deslocamento.
Cassidulus mitis Krau is an endemic species from Rio de Janeiro, Brazil. To verify its reproductive cycle, samples were taken from October 1998 to April 2000 at Vermelha Beach. Sex ratio of 1 (x2= 1.48; a0.05=3.84; DF= l) was found for C. mitis. Reproduction occurs overall the year. Gonadal index (GI) of males was greater than GI of females (x2= 18.33, a0.05=3.84). Reproduction is asynchronous. Males have five gametogenic stages: Early growth, Premature, Mature, Partially spawned and Early growth with partially spawned stage. There is no Spent or Recovery stage as in females. Females have six gametogenic stages: Recovery, Early growth, Premature, Mature, Partially spawned and Spent stage but there is no Early growth with partially spawned stage as in males. Mean diameter of oocytes was 382 μm ( DP=49 μm). Mean number of juveniles per female was 99.8 individuals (DP= 108.25; SE= l6.32). Anterior gonads are commonly smaller than posterior ones. Differences in gametogenic stages were found between anterior and posterior gonads. First sexual maturity occurs in individuals larger than 17 mm. Intestine wet weight is about two or three fold higher than test wet weight. It means that C. mitis uses its intestine as a weight belt to avoid displacement.
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Souto, Camila. "Sistemática da família Cassidulidae (Echinoidea: Cassiduloida) e considerações taxonômicas e paleobiogeográficas." reponame:Repositório Institucional da UFBA, 2013. http://www.repositorio.ufba.br/ri/handle/ri/12823.

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FAPESB
Os cassidulóides têm proporcionado grandes desafios aos taxonomistas que tentam classificá-los, provavelmente por se tratar de um grupo artificial. Estudos filogenéticos da ‘ordem’ resultaram em topologias com baixa resolução devido à falta de informação acerca de alguns táxons e sinais de exaustão de caracteres ao longo da evolução de suas famílias. Dentre elas, a família Cassiulidae é composta por cinco a seis gêneros e pouco se sabe sobre o relacionamento entre seus gêneros, visto que análises ao nível de ordem incluíram poucas espécies desta família. Neste trabalho foram realizadas análises cladísticas para propor uma hipótese de relações filogenéticas entre os gêneros da família Cassidulidae. A análise principal incluiu 16 cassidulídeos e 33 caracteres morfológicos. As análises seguintes tiveram como objetivo verificar a influência dos dados faltantes e da inclusão de táxons fósseis na topologia encontrada. Cada uma das três análises resultou em uma única árvore mais parcimoniosa, em geral, bem resolvida. As relações de parentesco foram: (Eurhodia relicta (demais Eurhodia) + ((Australanthus + Cassidulus malayanus) + (Paralampas (Cassidulus + Rhyncholampas)))). Tanto a quantidade de dados faltantes quanto a exclusão de espécies fósseis não afetaram negativamente a resolução da árvore. Os resultados obtidos indicaram a necessidade de estudar a taxonomia, principalmente, dos gêneros Eurhodia, Cassidulus e Rhyncholampas e a exclusão de Cassidulus malayanus e Eurhodia relicta dos seus respectivos gêneros. Possíveis ocorrências de processos heterocrônicos foram detectadas, a exemplo da evolução do gênero Rhyncholampas por peramorfose e do gênero Paralampas por pedomorfose. Os cassidulídeos provavelmente se originaram no Cretáceo Tardio e novidades não foram adicionadas à sua evolução. Como resultado, processos heterocrônicos devem ter desempenhado um papel importante na diversificação da família. Evidências de processos heterocrônicos obtidas a partir da análise atual foram discutidas. Finalmente, um cenário paleobiogeográfico dos cassidulídeos foi proposto, com origem Tetiana e dispersão inicial, seguida por expansão e vicariância.
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7

Cunningham, Adele. "The reproductive cycle of Lytechinus variegatus (Echinodermata: Echinoidea) from the Florida panhandle." Birmingham, Ala. : University of Alabama at Birmingham, 2008. https://www.mhsl.uab.edu/dt/2008d/cunningham.pdf.

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Thesis (Ph. D.)--University of Alabama at Birmingham, 2008.
Additional advisors: Andy Gannon, John Lawrence, James McClintock, Thane Wibbels. Description based on contents viewed May 29, 2008; title from title screen. Includes bibliographical references.
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8

Chiu, Sein-tuck, and 趙善德. "Aspects of the ecology of Anthocidaris crassispina (echinodermata: echinoidea) in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1987. http://hub.hku.hk/bib/B31230805.

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Madon-Senez, Céline. "Disparité morphologique et architecturale des schizasteridae incubants (Echinoidea, Spatangoïda) des régions australes." Dijon, 1998. http://www.theses.fr/1998DIJOS065.

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Cette thèse constitue une monographie détaillée de 27 espèces d'échinidés endémiques aux régions antarctique et subantarctique. Ces oursins sont repartis dans les genres incubants actuels Abatus, Amphipneustes, Tripylus et Brachysternaster (famille des Schizasteridae). Ils présentent un fort dimorphisme sexuel : les femelles ont développé des poches incubatrices dans lesquelles les juvéniles terminent leur développement. L'objectif majeur de cette thèse a consisté à inventorier la disparité morphologique et architecturale chez les 27 espèces incubantes (échantillonnage d'environ 500 oursins). Cette étude de la disparité interspécifique a été complétée par une étude de la variabilité intraspécifique chez une espèce de référence endémique à l'archipel des Kerguelen, l'échinidé Abatus Cordatus. L'étude de la disparité a été menée sur 2 aspects : les pédicellaires (observation des différentes morphologies) et les plaques ambulacraires et interambulacraires (recensement d'environ 75000 plaques). Un troisième objectif a consisté à mieux comprendre la fabrication des tests d'oursins. Les résultats montrent que le nombre de branches fasciolaires ne justifie en aucun cas la distribution des espèces dans les principaux genres. L'étude des extensions architecturales du labre et des plaques sternales a révélé l'existence d'une relation entre ces 2 caractères chez Abatus et Tripylus. Chez Abatus, des phénogrammes ont déterminé 2 groupes morphologiques, le premier rassemblant des espèces de forme ronde et le second des morphologies plus allongées. Chez Abatus cordatus, il n'existe pas de structuration géographique nette de la disparité architecturale. Le genre Amphipneustes, est envisagé comme un groupe hétérogènes ; plusieurs modifications systématiques sont proposées. Cette thèse a permis de mieux comprendre la dynamique de fabrication des tests. Des asymétries observées, quant à la position architecturale du périprocte et des fascioles sur les tests, résultaient d'une utilisation stricte de la numérotation de Loven. La recherche de la dynamique de construction des tests a mis à jour de vraies et de fausses asymétries. Finalement, le degré de symétrie de ces oursins est beaucoup plus achevé que la numérotation des plaques ne le laissait supposer.
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Chiu, Sein-tuck. "Aspects of the ecology of Anthocidaris crassispina (echinodermata: echinoidea) in Hong Kong /." [Hong Kong : University of Hong Kong], 1987. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1233571X.

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Books on the topic "Echinoidea"

1

M, Lawrence John, ed. Edible sea urchins: Biology and ecology. 2nd ed. Amsterdam: Elsevier, 2007.

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V, Markov A. Morskie ezhi semeĭstva Paleopneustidae (Echinoidea, Spatangoida): Morfologii︠a︡, sistema, filogenii︠a︡. Moskva: GEOS, 2001.

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Julian, Fell F., and United States. National Marine Fisheries Service, eds. Marine flora and fauna of the northeastern United States, Echinodermata: Echinoidea. Seattle, Wash.]: National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1985.

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1945-, Lewis D. N., ed. Catalogue of the type and figured specimens of fossil Echinoidea in the British Museum. (London): British Museum (Natural History), 1986.

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Mooi, Rich. Living and fossil genera of the Clypeasteroida (Echinoidea, Echinodermata): An illustrated key and annotated checklist. Washington, D.C: Smithsonian Institution Press, 1989.

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Smith, A. B. British Cretaceous echinoids. London: Palaeontographical Society, 1993.

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Smith, A. B. British Cretaceous echinoids. London: Palaeontographical Society, 1993.

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B, Smith Andrew. British Cretaceous echinoids. London: Palaeontographical Society, 1989.

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Akers, Rosemary E. Texas Cretaceous echinoids. [Houston, TX]: Paleontology Section, Houston Gem and Mineral Society, 1987.

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Smith, A. B. British Cretaceous echinoids. London: Palaeontographical Society, 1990.

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Book chapters on the topic "Echinoidea"

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Forli, Maurizio, and Andrea Guerrini. "Snake Eggs, Judaic Stones, Ombriae: Echinoidea from Magic, to Folk Beliefs and Science." In The History of Fossils Over Centuries, 349–79. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04687-2_20.

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Tsiaga, E., S. Haritonidis, and E. Lazaridou. "Preliminary Data on Food Preferences of the Sea Urchin Paracentrotus Lividus Lamarck (Echinoidea Regularia)." In Progress in Botanical Research, 381–84. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5274-7_88.

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Ax, Peter. "Echinoida — Holothuroida." In Multicellular Animals, 125–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-08874-6_15.

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Jain, Sreepat. "Echinoids." In Fundamentals of Invertebrate Palaeontology, 175–210. New Delhi: Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-3658-0_6.

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Ghiold, J., and G. A. Rountree. "Echinoids of Grand Cayman." In The Cayman Islands, 191–98. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0904-8_10.

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Kowalewski, Michał, and James H. Nebelsick. "Predation on Recent and Fossil Echinoids." In Predator—Prey Interactions in the Fossil Record, 279–302. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0161-9_12.

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Yoshida, M., H. Nogi, and Y. Tani. "Nervous Mechanisms of Spawning in Regular Echinoids." In Nervous Systems in Invertebrates, 559–72. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-1955-9_19.

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"1. Introduction." In Echinoidea, 1–2. De Gruyter, 2017. http://dx.doi.org/10.1515/9783110368536-001.

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"2. Classification." In Echinoidea, 3–6. De Gruyter, 2017. http://dx.doi.org/10.1515/9783110368536-002.

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"3. Taxonomy: systematic description Infraclass Acroechinoidea Smith, 1981." In Echinoidea, 7–338. De Gruyter, 2017. http://dx.doi.org/10.1515/9783110368536-003.

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Conference papers on the topic "Echinoidea"

1

"Sea Urchins (Echinodermata: Echinoidea): Their Biology, Culture and Bioactive compounds." In International Conference on Agricultural, Ecological and Medical Sciences. International Institute of Chemical, Biological & Environmental Engineering, 2014. http://dx.doi.org/10.15242/iicbe.c714075.

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Spagnuolo, Edward, Khel Gordhan, Khel Gordhan, Camilla Souto, Camilla Souto, Gene Hunt, and Gene Hunt. "EXPLORING MORPHOLOGICAL DISPARITY IN THE CASSIDULOIDA (ECHINODERMATA, ECHINOIDEA) USING GEOMETRIC MORPHOMETRICS." In GSA Connects 2021 in Portland, Oregon. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021am-371062.

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Lin, Jih-Pai, Kwen-Shen Lee, Lo-Yu Chang, and Shyh-Jye Lee. "MOLECULAR PHYLOGENY OF SAND DOLLARS (ECHINOIDEA: CLYPEASTEROIDA) WITH NEW DATA EXTRACTED FROM TAIWANESE SPECIES." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-300541.

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Lin, Jih-Pai. "THE PAST AND PRESENT RECORDS OF SAND DOLLARS (ECHINOIDEA; CLYPEASTEROIDA) FROM TAIWAN: ORIGINATION, DISPERSAL, PHYLOGENY AND BIOGEOGRAPHY." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-336315.

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Thompson, Jeffrey R., Eric M. Erkenbrack, Elizabeth Petsios, and David J. Bottjer. "PALEOGENOMICS OF ECHINOIDS AND THE EVOLUTION OF ECHINOID GENE REGULATORY NETWORKS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-282588.

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Watts, Jerrad, and Elizabeth Petsios. "“PSYCHO” ECHINOID SPINES – EVOLUTION THROUGH SPINE MORPHOSPACE IN CROWN GROUP CIDAROID ECHINOIDS." In Joint 58th Annual GSA North-Central/58th Annual GSA South-Central Section Meeting - 2024. Geological Society of America, 2024. http://dx.doi.org/10.1130/abs/2024nc-398813.

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Lin, Jih-Pai, Lo-Yu Chang, Andreas Kroh, and Daniel Janies. "CONGRUENCE BETWEEN THE MORPHOLOGIC TREE AND MOLECULAR TREE: A CASE STUDY OF CLYPEASTEROIDA BASED ON THE NEW AND COMPLETE MITOCHONDRIAL GENOME OF SINAECHINOCYAMUS MAI (ECHINODERMATA: ECHINOIDEA)." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-357045.

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Grun, Tobias B., and James H. Nebelsick. "STRUCTURAL MECHANICS OF CLYPEASTEROID ECHINOIDS." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-315711.

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Thompson, Jeffrey R., and David J. Bottjer. "SUBSTRATE AFFINITY IN CARBONIFEROUS ECHINOIDS." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-300709.

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Petsios, Elizabeth, Roger W. Portell, Lyndsey Farrar, Shamindri Tennakoon, Tobias Grun, Michał Kowalewski, and Carrie L. Tyler. "AN ASYNCHRONOUS MESOZOIC MARINE REVOLUTION IN ECHINOIDS." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-357565.

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Reports on the topic "Echinoidea"

1

Chriscoe, Mackenzie, Rowan Lockwood, Justin Tweet, and Vincent Santucci. Colonial National Historical Park: Paleontological resource inventory (public version). National Park Service, February 2022. http://dx.doi.org/10.36967/nrr-2291851.

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Colonial National Historical Park (COLO) in eastern Virginia was established for its historical significance, but significant paleontological resources are also found within its boundaries. The bluffs around Yorktown are composed of sedimentary rocks and deposits of the Yorktown Formation, a marine unit deposited approximately 4.9 to 2.8 million years ago. When the Yorktown Formation was being deposited, the shallow seas were populated by many species of invertebrates, vertebrates, and micro-organisms which have left body fossils and trace fossils behind. Corals, bryozoans, bivalves, gastropods, scaphopods, worms, crabs, ostracodes, echinoids, sharks, bony fishes, whales, and others were abundant. People have long known about the fossils of the Yorktown area. Beginning in the British colonial era, fossiliferous deposits were used to make lime and construct roads, while more consolidated intervals furnished building stone. Large shells were used as plates and dippers. Collection of specimens for study began in the late 17th century, before they were even recognized as fossils. The oldest image of a fossil from North America is of a typical Yorktown Formation shell now known as Chesapecten jeffersonius, probably collected from the Yorktown area and very likely from within what is now COLO. Fossil shells were observed by participants of the 1781 siege of Yorktown, and the landmark known as “Cornwallis Cave” is carved into rock made of shell fragments. Scientific description of Yorktown Formation fossils began in the early 19th century. At least 25 fossil species have been named from specimens known to have been discovered within COLO boundaries, and at least another 96 have been named from specimens potentially discovered within COLO, but with insufficient locality information to be certain. At least a dozen external repositories and probably many more have fossils collected from lands now within COLO, but again limited locality information makes it difficult to be sure. This paleontological resource inventory is the first of its kind for Colonial National Historical Park (COLO). Although COLO fossils have been studied as part of the Northeast Coastal Barrier Network (NCBN; Tweet et al. 2014) and, to a lesser extent, as part of a thematic inventory of caves (Santucci et al. 2001), the park had not received a comprehensive paleontological inventory before this report. This inventory allows for a deeper understanding of the park’s paleontological resources and compiles information from historical papers as well as recently completed field work. In summer 2020, researchers went into the field and collected eight bulk samples from three different localities within COLO. These samples will be added to COLO’s museum collections, making their overall collection more robust. In the future, these samples may be used for educational purposes, both for the general public and for employees of the park.
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Tweet, Justin, Holley Flora, Summer Weeks, Eathan McIntyre, and Vincent Santucci. Grand Canyon-Parashant National Monument: Paleontological resource inventory (public version). National Park Service, December 2021. http://dx.doi.org/10.36967/nrr-2289972.

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Grand Canyon-Parashant National Monument (PARA) in northwestern Arizona has significant paleontological resources, which are recognized in the establishing presidential proclamation. Because of the challenges of working in this remote area, there has been little documentation of these resources over the years. PARA also has an unusual management situation which complicates resource management. The majority of PARA is administered by the Bureau of Land Management (BLM; this land is described here as PARA-BLM), while about 20% of the monument is administered by the National Park Service (NPS; this land is described here as PARA-NPS) in conjunction with Lake Mead National Recreation Area (LAKE). Parcels of state and private land are scattered throughout the monument. Reports of fossils within what is now PARA go back to at least 1914. Geologic and paleontologic reports have been sporadic over the past century. Much of what was known of the paleontology before the 2020 field inventory was documented by geologists focused on nearby Grand Canyon National Park (GRCA) and LAKE, or by students working on graduate projects; in either case, paleontology was a secondary topic of interest. The historical record of fossil discoveries in PARA is dominated by Edwin McKee, who reported fossils from localities in PARA-NPS and PARA-BLM as part of larger regional projects published from the 1930s to the 1980s. The U.S. Geological Survey (USGS) has mapped the geology of PARA in a series of publications since the early 1980s. Unpublished reports by researchers from regional institutions have documented paleontological resources in Quaternary caves and rock shelters. From September to December 2020, a field inventory was conducted to better understand the scope and distribution of paleontological resources at PARA. Thirty-eight localities distributed across the monument and throughout its numerous geologic units were documented extensively, including more than 420 GPS points and 1,300 photos, and a small number of fossil specimens were collected and catalogued under 38 numbers. In addition, interviews were conducted with staff to document the status of paleontology at PARA, and potential directions for future management, research, protection, and interpretation. In geologic terms, PARA is located on the boundary of the Colorado Plateau and the Basin and Range provinces. Before the uplift of the Colorado Plateau near the end of the Cretaceous 66 million years ago, this area was much lower in elevation and subject to flooding by shallow continental seas. This led to prolonged episodes of marine deposition as well as complex stratigraphic intervals of alternating terrestrial and marine strata. Most of the rock formations that are exposed in the monument belong to the Paleozoic part of the Grand Canyon section, deposited between approximately 510 and 270 million years ago in mostly shallow marine settings. These rocks have abundant fossils of marine invertebrates such as sponges, corals, bryozoans, brachiopods, bivalves, gastropods, crinoids, and echinoids. The Cambrian–Devonian portion of the Grand Canyon Paleozoic section is represented in only a few areas of PARA. The bulk of the Paleozoic rocks at PARA are Mississippian to Permian in age, approximately 360 to 270 million years old, and belong to the Redwall Limestone through the Kaibab Formation. While the Grand Canyon section has only small remnants of younger Mesozoic rocks, several Mesozoic formations are exposed within PARA, mostly ranging in age from the Early Triassic to the Early Jurassic (approximately 252 to 175 million years ago), as well as some middle Cretaceous rocks deposited approximately 100 million years ago. Mesozoic fossils in PARA include marine fossils in the Moenkopi Formation and petrified wood and invertebrate trace fossils in the Chinle Formation and undivided Moenave and Kayenta Formations.
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Common Cenozoic Echinoids from Florida. Florida Geological Survey, 1993. http://dx.doi.org/10.35256/p04.

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