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Dissertations / Theses on the topic 'Proboscidea'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Schmitt, Arnaud. "La région de l’oreille osseuse chez les Proboscidea (Afrotheria, Mammalia) : anatomie, fonction, évolution." Thesis, Paris, Muséum national d'histoire naturelle, 2016. http://www.theses.fr/2016MNHN0011/document.

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Les éléphants font partie des rares mammifères capables d’entendre les infrasons et leur comportement locomoteur est unique. Ces singularités correspondent à des spécialisations de leurs organes sensoriels contenus dans l’oreille interne : la cochlée (audition) et le système vestibulaire (locomotion). Alors que la diversité actuelle des proboscidiens est très faible (trois espèces), ce groupe a été bien plus diversifié pendant les 60 millions d’années qui composent son histoire. Cette thèse étudie pour la première fois de façon complète la morphologie et la fonction de la région de l’oreille (

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2

Marcon, Gabrielli Teresa Gadens. "Contribuição ao estudo dos Proboscidea (Mammalia, Gomphotheriidae) do quaternário do Estado do Rio Grande do Sul, Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/11266.

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A revisão de espécimes já descritos e o estudo de novos espécimes permitiu identificar Stegomastodon waringi como o único proboscídeo registrado para os municípios de Dom Pedrito, Iraí, Itaqui, Nova Palma, Osório, Pântano Grande, Quaraí, Rosário do Sul, Santa Vitória do Palmar e São Gabriel. Observou-se ainda um tamanho relativamente maior, e uma maior complexidade relativa no padrão de desgaste oclusal dos molares da espécie no Estado do Rio Grande do Sul, quando comparados com dentes homólogos dos demais estados do Brasil.<br>The revision of the already described and of new specimens allowed

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3

Smith, Heidi Lynn. "Mechanisms of nurse egg formation in the spionid polychaete Boccardia proboscidea, an ultrastructural analysis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37808.pdf.

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4

Silverstein, Rachel. "A Paleontological Analysis of Late Pleistocene Proboscidea from Saltville, Virginia: Taphonomy, Systematic Paleontology, and Paleobiology." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etd/3230.

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Saltville, Virginia (Smyth County and Washington County) has been known for its late Pleistocene megafauna since the 1700s. Based on reviews of past excavations and material in collections, the most prominent fossils found at Saltville are proboscideans. Teeth of Mammuthus (mammoth) and Mammut (mastodon) from East Tennessee State University Museum of Natural History, Virginia Museum of Natural History, and Smithsonian were the focus of this research. Evidence of sedimentary abrasion and degree of concretion development was used to address the taphonomic history of the assemblage. Evidence of r

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5

Pardini, Amanda T. "Genome evolution and systematics of the Paenungulata (Afrotheria, Mammalia)." Thesis, Stellenbosch : Stellenbosch University, 2006. http://hdl.handle.net/10019.1/21697.

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Dissertation (PhD)--University of Stellenbosch, 2006.<br>ENGLISH ABSTRACT: Increases in taxonomic sampling and the numbers and types of markers used in phylogenetic studies have resulted in a marked improvement in the interpretation of systematic relationships within Eutheria. However, relationships within several clades, including Paenungulata (Hyracoidea, Sirenia, Proboscidea), remain unresolved. Here the combination of i) a rapid radiation and ii) a deep divergence have resulted in limited phylogenetic signal available for analysis. Specifically i) a short internode separating success

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6

Kitagawa, Hiromichi. "Taxonomic revision of the Pleistocene fossil Elephantidae (Mammalia, Proboscidea) from the Japanese and Taiwanese islands." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/142390.

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7

Inabinett, Matthew, and Chris Widga. "Chronological and Paleobiological Controls on the Expression of Mastodon (Proboscidea, Mammutidae) Mandibular Tusks in North America." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/asrf/2019/schedule/142.

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Mastodons (family Mammutidae) are widespread and abundant in of Pleistocene faunas across North America, exhibiting considerable variation in morphology over their broad geographic and temporal range. Mandibular tusks are a notably variable feature among mastodons; these tusks vary in size and shape, and many mastodons lack them entirely, or possess only one. Patterns in mandibular tusk distribution could potentially indicate important selective controls on different populations. Various hypotheses have been proposed to explain the distribution of mastodon mandibular tusks, attributing their p

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8

Inabinett, Matthew. "An Unusual Mastodon Revisited: Providing a Regional Focus for Mammut americanum (Proboscidea, Mammutidae) in the Southeast." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/etd/3772.

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A century ago, two large American mastodon Mammut americanum specimens from coastal South Carolina were mounted for display at Amherst College. Their robust build, broad and pentalophodont third molars, and well-developed mandibular tusks were noted as unusual. Here, these specimens are redescribed; three additional mastodon mandibles from the same region of South Carolina are also described. Though collection information on these specimens is sparse, they appear to span >150 ka in the Middle to Late Pleistocene, and probably include the first report of Mammut from the earliest-Rancholabrean T

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9

Molena, Fernanda Porcari. "Variação individual no esqueleto apendicular de mastodontes (Proboscidea: Gomphotheriidae) provenientes de São Bento do Una, Pernambuco, Brasil." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/41/41133/tde-01052013-093838/.

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Os estudos sobre anatomia e taxonomia de mastodontes são elaborados, principalmente, a partir de dados obtidos de elementos cranianos e dentários, por serem altamente especializados e consistirem em diagnoses para o grupo. Por este motivo, os ossos pós-cranianos acabam sendo negligenciados. O objetivo desta dissertação foi contribuir com novos dados acerca dos mastodontes sul-americanos (família Gomphoteriidae), por meio da descrição detalhada do esqueleto apendicular de exemplares provenientes de São Bento do Una, Pernambuco, bem como pela comparação com exemplares de diversas localidades (re

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10

Nascimento, Ednair Rodrigues do. "Os xenarthra pilosa (megatheriidae), notoungulata (toxodontidae) e proboscidea (gomphotheriidae) da formação Rio Madeira, pleitoceno superior, Estado de Rondônia, Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2008. http://hdl.handle.net/10183/13777.

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São aqui descritos materiais de mamíferos pertencentes à Formação Rio Madeira, localidade Araras, Município de Nova Mamoré, Bacia do Abunã, Pleistoceno Superior, Estado de Rondônia. As espécies registradas foram Eremotherium laurillardi (Megatheriidae, Pilosa), Stegomastodon waringi (Gomphotheriidae, Proboscidea), Trigodonops lopesi, e um Toxodontinae indet. (Toxodontidae, Notoungulata). O estudo permitiu corroborar para E. laurillardi a existência de uma porção mastoidea do pétreo na parede posterior do crânio, independente dos processos mastóide (pétreo) e pós-timpânico (esquamosal); observa

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11

Debruyne, Régis. "Différenciation morphologique et moléculaire des Elephantinae (Mammalia, Proboscidea) : Statut systématique de l'éléphant d'Afrique de forêt, Loxodonta africana cyclotis (Matschie, 1900)." Paris, Muséum national d'histoire naturelle, 2003. http://www.theses.fr/2003MNHN0039.

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La thèse se propose de ré-évaluer la différenciation taxinomique à l'intérieur de la sous-famille monophylétique des Elephantinae Gray, 1821. Deux niveaux d'intégration différents sont envisagés. La divergence au sein des éléphants d'Afrique est analysée, entre deux formes lassiquement reconnues comme des sous-espèces : Loxodonta africana africana (Blumenbach, 1792), l'éléphant de savane et Loxodonta africana cyclotis (Matschie, 1900), l'éléphant de forêt. Cette question est abordée sous l'angle bibliographique, morpho-anatomique et moléculaire. La comparaison des morphotypes révèle qu'une par

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12

Metz-Muller, Florence. "La population d'Anancus arvernensis (Proboscidea, Mammalia) du Pliocène de Dorkovo (Bulgarie) : étude des modalités évolutives d'Anancus arvernensis et phylogénie du genre Anancus." Paris, Muséum national d'histoire naturelle, 2000. http://www.theses.fr/2000MNHN0018.

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13

Labe, Bruno. "Les mammouths (Mammalia, Proboscidea) de la région lyonnaise : étude, révision du matériel des collections de l'Université Lyon I et du Muséum d'histoire naturelle de Lyon." Lyon 1, 1999. http://www.theses.fr/1999LYO10043.

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Soixante-dix-huit gisements paleontologiques et / ou prehistoriques, ou furent retrouves des restes d'elephantides, ont pu etre denombres et situes avec suffisamment de precision sur l'ensemble de la region lyonnaise. Il existe aussi quelques rares fossiles pour lesquels on ne possede pas de veritable indication de lieu de trouvaille, hormis le fait d'etre originaires du secteur etudie. La premiere partie correspond a une mise au point des connaissances generales sur les elephantides et plus particulierement sur le genre mammuthus. J'expose l'epineux probleme de l'espece souvent contestee elep

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14

Dickinson, Marc R. "Enamel amino acid racemisation dating and its application to building Proboscidean geochronologies." Thesis, University of York, 2018. http://etheses.whiterose.ac.uk/22261/.

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Analysis of the predictable breakdown of proteins and amino acids in ancient biominerals enables age estimation over the Quaternary, but to date, its application to mammalian remains has been challenging. It has been postulated that enamel is a suitable biomineral for the long-term survival of endogenous amino acids and thus, it can be used for age estimation. Directly dating mammalian remains is integral to understanding mammalian evolution and for understanding palaeoecology and palaeoclimatology. Analysis of multiple amino acids for geochronological studies is typically achieved using a RP-

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15

Jones, Alison Marie. "Environmental signals in proboscidean molars : understanding the isotopic variations in enamel and collagen." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325979.

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16

Hart-Farrar, Brenna. "Manus Descriptions of an Undescribed Mastodon from the Latest Miocene-Earliest Pliocene Gray Fossil Site, with Comparisons to other North American Proboscidean Taxa." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etd/3680.

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A detailed morphological description of a proboscidean manus from the Gray Fossil Site (GFS), Gray, Tennessee is provided. Manus elements from an American mastodon (Mammut americanum), a Britt’s shovel-tusker (Amebelodon britti), an undescribed small gomphothere species, and a Columbian mammoth (Mammuthus columbi) are used for comparisons. Linear measurements indicate proportional differences between the GFS mastodon and other proboscidean taxa ranging from the Hemphillian to Rancholabrean land mammal ages. Possible pathologies are also described. The purpose of this study is to determine how

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17

Zaoujal, Asma. "Bases neurobiologiques de l'apprentissage et de la mémoire chez l'abeille (Apis meliffera) : Approches neuroanatomiques et neuropharmacologiques du conditionnement olfactif du réflexe proboscidien." Toulouse 3, 1993. http://www.theses.fr/1993TOU30107.

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Chez l'abeille, le reflexe d'extension du proboscis, provoque par la stimulation sucree de l'antenne peut etre conditionne a la presentation d'une odeur initialement neutre. A l'issue de l'apprentissage, l'odeur seule evoque la reponse motrice d'extension du proboscis. Au plan anatomique, trois structures principales sont mises en jeu dans ce conditionnement: les lobes antennaires (relais sensoriels), les corps en champignons (zones d'integration cerebrale) et le ganglion sous-sophagien qui represente la sortie motrice. Nous nous sommes donc, dans un premier temps, appliques a caracteriser les

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18

"A Phylogenetic Study of the Plant Family Martyniaceae (Order Lamiales)." Doctoral diss., 2011. http://hdl.handle.net/2286/R.I.14430.

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abstract: Acceptance of the plant group Martyniaceae as a distinct family has long been questioned. Previously placed in the family Pedaliaceae, the Martyniaceae have been allied to numerous other families within the order Lamiales. The objectives of this study include the investigation of the placement of the Martyniaceae within the order Lamiales using molecular data (chloroplast DNA sequences), the further examination of the internal relationships of the Martyniaceae using an expanded nuclear and chloroplast sequences data set, and the construction of a taxonomic treatment of the family tha

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19

Marinheiro, João André da Silva. "Proboscideans and other vertebrates from Anchrif, Morocco." Master's thesis, 2015. http://hdl.handle.net/10362/16899.

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The paleontological richness of Morocco has been scientifically known since at least the early 20th century. The region of the Middle Atlas, more specifically the Boulemane area, has been however only sparsely studied since the 60’s when it supplied various vertebrate fossils from the Middle Jurassic.In the beginning of the 2000’s some fossil bones were discovered in a new fossil-site near the village of Taghrout, in the Boulemane area and in September 2013 a Moroccan-Portuguese expedition made excavations in the site with the help locals from the village of Taghrout. The site is Pleistocene

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20

Andrade, João Pedro Fernandes. "Pleistocene biostratigraphic markers of the North Pacific, IODP Site U1340: Proboscia barboi, Proboscia curvirostris and Thalassiosira jouseae." Master's thesis, 2016. http://hdl.handle.net/10362/19142.

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Diatoms are a large and widespread group of phytoplankton with an important role in ecosystems as primary producers. They are of great use in biostratigraphic and paleoclimatic studies, namely in the Bering Sea, where they are abundantly preserved in sediments. Proboscia barboi, Proboscia curvirostris and Thalassiosira jouseae are Plio-Pleistocene centric diatoms of mid to high latitudes of the North Pacific and North Atlantic Oceans, and are important biostratigraphic markers and datums in these regions. In this study, the biostratigraphy of these species at IODP Site U1340 (Bowers Ridge, Ber

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21

Murphy, Stephen A. "The ecology and conservation biology of palm cockatoos Probosciger aterrimus." Phd thesis, 2005. http://hdl.handle.net/1885/150154.

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22

Schubert, Melanie [Verfasser]. "The social system of the round-eared sengi (Macroscelides proboscideus) / vorgelegt von Melanie Schubert." 2009. http://d-nb.info/999711040/34.

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23

Zdenek, Christina Nicole. "Who's who of palm cockatoos : evaluating non-invasive techniques for identification of individual palm cockatoos (probosciger aterrimus)." Master's thesis, 2012. http://hdl.handle.net/1885/149819.

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Knowledge of individual identity within populations is often essential for obtaining a detailed understanding of the ecology and conservation requirements of species. Palm cockatoos (Probosciger aterrimus) are extremely difficult to catch and are susceptible to over-stress. As such, a non-invasive alternative to traditional capture techniques is highly needed. This thesis primarily investigates vocal individuality as a non-invasive technique for this species. First, I developed a naming system for palm cockatoo vocalisations to organise and verbally described them all. I used advanced sound re

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24

Keighley, Miles. "Cultural diversity and meta-population dynamics in Australian palm cockatoos (Probosciger aterrimus); the legacy of landscape and biogeographic history." Phd thesis, 2017. http://hdl.handle.net/1885/143932.

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Understanding dispersal dynamics is important for conservation of vulnerable species because they effect whether populations recover or disappear following decline or disturbance, especially in species with slow life-histories that cannot replenish quickly. Palm cockatoos have one of the slowest reproductive rates for any parrot, and likely face steep decline in at least one location on Cape York Peninsula (CYP), north-eastern Australia. Traditional methods of measuring dispersal, such as capture and fitting of tracking devices, identification markers

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25

Olbricht, Gea [Verfasser]. "Aspects of the reproductive biology of sengis (Macroscelidea) in general and the postnatal development of the short-eared sengi (Macroscelides proboscideus) in particular / vorgelegt von Gea Olbricht." 2009. http://d-nb.info/996434844/34.

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