Academic literature on the topic 'Calcified sponges'

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Journal articles on the topic "Calcified sponges"

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Zhuravlev, A. Yu, F. Debrenne, and R. A. Wood. "A synonymized nomenclature for calcified sponges." Geological Magazine 127, no. 6 (1990): 587–89. http://dx.doi.org/10.1017/s0016756800015478.

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AbstractA synonymized nomenclature for calcified sponges (archaeocyaths, stromatoporoids, chaetetids, sphinctozoans and pharetronids) is here presented to enable comparison of suggested homologous structures.
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Senowbari-Daryan, Baba, and George D. Stanley. "Late Triassic thalamid sponges from Nevada." Journal of Paleontology 66, no. 2 (1992): 183–93. http://dx.doi.org/10.1017/s0022336000033692.

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A study of Upper Triassic (Norian) thalamid sponges (“sphinctozoans”) from the Pilot Mountains, Garfield Hills, and East Range, Nevada, reveals an abundance of calcified sponges of the suborder Porata Seilacher. Two new species, Polycystocoelia silberlingi n. sp. and Neoguadalupia? norica n. sp., are added to our knowledge of five thalamid sponge taxa previously known from Nevada. All specimens have been neomorphically altered to calcite in a manner implying an original aragonite mineralogy.At the species level, the sponges show a restricted distribution. Nevadathalamia cylindrica (Seilacher)
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Speights, Cori J., and Michael W. McCoy. "Range expansion of a fouling species indirectly impacts local species interactions." PeerJ 5 (October 19, 2017): e3911. http://dx.doi.org/10.7717/peerj.3911.

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We investigated how recent changes in the distribution and abundance of a fouling organism affected the strength of interactions between a commercially important foundation species and a common predator. Increases in the abundance of boring sponges that bioerode the calcified shells of oysters and other shelled organisms have been attributed to increased salinization of estuarine ecosystems. We tested the hypothesis that fouling by boring sponges will change the interaction strength between oysters and a common predator (stone crabs). We generated five oyster density treatments crossed with tw
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PLEŞ, George, Felix SCHLAGINTWEIT, Iuliana LAZĂR, Ioan I. BUCUR, Emanoil SĂSĂRAN, and Mihaela GRĂDINARU. "Exceptionally preserved calcified sponge assemblages in Upper Jurassic carbonates of the eastern Getic Carbonate Platform (Southern Carpathians, Romania)." Comptes Rendus Palevol 20, no. 31 (2021): 641–66. https://doi.org/10.5852/cr-palevol2021v20a31.

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A rich poriferan assemblage was identified within the easternmost part of the Getic Carbonate Platform of Romania (Grădiștei Gorges). The excellent preservation state of most poriferans here led to the discovery of a new species (<em>Neuropora gigantea </em>Pleș &amp; Schlagintweit, n. sp.) and to the identification of previously unknown diagnostic features in some species (<em>Sarsteinia babai </em>Schlagintweit&nbsp;&amp; Gawlick, 2006 emend., <em>Neuropora lusitanica </em>Termier, 1985, <em>Sphaeractinia steinmanni </em>Canavari, 1893). <em>Calciagglutispongia yabei </em>Reitner, 1992, <em>
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Beresi, Matilde Sylvia, and Susana Emma Heredia. "SPONGE SPICULE ASSEMBLAGES FROM THE MIDDLE ORDOVICIAN OF PONÓN TREHUÉ, SOUTHERN MENDOZA, ARGENTINA." Spanish Journal of Palaeontology 15, no. 1 (2021): 37. http://dx.doi.org/10.7203/sjp.15.1.22011.

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Sponge spicule assemblages are described fom residues of conodont samples from Ordovician strata in the Sierra Pintada, southern Mendoza Province, Argentina. Spicules have been recovered from the Arenigian allochthonous megaconglomerates and from autochthonous limestones and carbonates sandstones of the Ponón Trehue Formation. This formation is a elastic-carbonate sequence representing olistostromic and turbidite facies. Conodonts in this formation are Llandeillan in age. The spicules are calcified and moderately preserved. The material shows a low diversity. Poriferan taxa found in this forma
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Kertmen, Ahmet, Iaroslav Petrenko, Christian Schimpf, et al. "Calcite Nanotuned Chitinous Skeletons of Giant Ianthella basta Marine Demosponge." International Journal of Molecular Sciences 22, no. 22 (2021): 12588. http://dx.doi.org/10.3390/ijms222212588.

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Marine sponges were among the first multicellular organisms on our planet and have survived to this day thanks to their unique mechanisms of chemical defense and the specific design of their skeletons, which have been optimized over millions of years of evolution to effectively inhabit the aquatic environment. In this work, we carried out studies to elucidate the nature and nanostructural organization of three-dimensional skeletal microfibers of the giant marine demosponge Ianthella basta, the body of which is a micro-reticular, durable structure that determines the ideal filtration function o
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Duarte, Luis Vitor, Manfred Krautter, and Antonio Ferreira Soares. "Bioconstructions a spongiaires siliceux dans le Lias terminal du Bassin lusitanien (Portugal); stratigraphie, sedimentologie et signification paleogeographique." Bulletin de la Société Géologique de France 172, no. 5 (2001): 637–46. http://dx.doi.org/10.2113/172.5.637.

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Abstract The Upper Liassic series in the western border of Iberia (Lusitanian Basin, Portugal), show an important lutitic sedimentation, characterized generally by a monotonous marl/limestone alternation. Small scale siliceous sponge mudmounds occur in these deposits from Middle Toarcian to Lower Aalenian age. The scope of this work is to pinpoint the stratigraphical and sedimentological context and to characterize controlling factors of the spongioliths. Stratigraphic and facies analysis. Relevant sections were observed and investigated in different locations of the Lusitanian Basin (e.g., Al
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Bloise, Nora, Alessia Patrucco, Giovanna Bruni, et al. "In Vitro Production of Calcified Bone Matrix onto Wool Keratin Scaffolds via Osteogenic Factors and Electromagnetic Stimulus." Materials 13, no. 14 (2020): 3052. http://dx.doi.org/10.3390/ma13143052.

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Pulsed electromagnetic field (PEMF) has drawn attention as a potential tool to improve the ability of bone biomaterials to integrate into the surrounding tissue. We investigated the effects of PEMF (frequency, 75 Hz; magnetic induction amplitude, 2 mT; pulse duration, 1.3 ms) on human osteoblast-like cells (SAOS-2) seeded onto wool keratin scaffolds in terms of proliferation, differentiation, and production of the calcified bone extracellular matrix. The wool keratin scaffold offered a 3D porous architecture for cell guesting and nutrient diffusion, suggesting its possible use as a filler to r
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Rowland, Stephen M., and Melissa Hicks. "The early Cambrian experiment in reef-building by metazoans." Paleontological Society Papers 10 (November 2004): 107–30. http://dx.doi.org/10.1017/s1089332600002370.

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A consortium dominated by archaeocyaths and calcified microorganisms (calcimicrobes) constructed the first metazoan reefs during an eleven-million-year interval of the Early Cambrian. However, archaeocyaths were not the first metazoan reef dwellers; the weakly calcified organismNamacalathus, and the more heavily biomineralized organismNamapoikia, occupied microbial reef environments during the late Neoproterozoic, but they were not involved in reef construction. Throughout the late nineteenth century, and during most of the twentieth century, the biological affinities of archaeocyaths were uns
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Shigeno, K., T. Nakamura, M. Inoue, et al. "Regenerative Repair of the Mandible using a Collagen Sponge Containing TGF-ß1." International Journal of Artificial Organs 25, no. 11 (2002): 1095–102. http://dx.doi.org/10.1177/039139880202501109.

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Introduction: Alveolar bone resorption and atrophy of the mandible are a major challenge for regeneration medicine. In the present investigation, a collagen sponge that contained TGF-ß1 was placed at a mandibular defect and the osteogenic effects of collagen-TGF-ß1 complex were evaluated. Material and Methods: The Pm2, Pm3, and Pm4 teeth on both sides of the mandibles of 12 adult beagle dogs (9.0–12.0 kg) were extracted. After the extraction-site wounds healed, a bone defect (10.0 × 15.0 mm-wide, 10.0mm-deep or 10.0 × 10.0mm-wide,10.0mm-deep) was created on the mandible. A collagen sponge (10.
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Book chapters on the topic "Calcified sponges"

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Wood, R. "Non-Spicular Biomineralization in Calcified Demosponges." In Fossil and Recent Sponges. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-75656-6_26.

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Cuif, J. P., and P. Gautret. "Taxonomic Value of Microstructural Features in Calcified Tissue from Recent and Fossil Demospongiae and Calcarea." In Fossil and Recent Sponges. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-75656-6_13.

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