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Article: Palaeohistology and external microanatomy of rauisuchian osteoderms (Archosauria: Pseudosuchia)

Publication: Palaeontology
Volume: 54
Part: 6
Publication Date: November 2011
Page(s): 1289 1302
Author(s): Torsten M. Scheyer and Julia B. Desojo
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How to Cite

SCHEYER, T. M., DESOJO, J. B. 2011. Palaeohistology and external microanatomy of rauisuchian osteoderms (Archosauria: Pseudosuchia). Palaeontology54, 6, 1289–1302.

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  • BENTON, M. J. 1999. Scleromochlus taylori and the origin of dinosaurs and pterosaurs. Philosophical Transactions of the Royal Society of London, Series B, 354, 1423–1446.
  • BENTON, M. J. and CLARK, J. M. 1988. Archosaur phylogeny and the relationships of the Crocodylia. 295–338. In BENTON, M. J. (ed.). The phylogeny and classification of the tetrapods, volume 1: Amphibians, reptiles, birds. Volume Systematics Association Special Volume No. 35A . Clarendon Press, Oxford, 392 pp.
  • BUFFRÉNIL, V. de 1982. Morphogenesis of bone ornamentation in extant and extinct crocodilians. Zoomorphology, 99, 155–166.
  • BRUSATTE, S. L., BENTON, M. J., DESOJO, J. B. and LANGER, M. C. 2010. The higher-level phylogeny of Archosauria (Tetrapoda: Diapsida). Journal of Systematic Palaeontology, 8, 3–47.
  • CERDA, I. A. and DESOJO, J. B. 2010. Dermal armour histology of aetosaurinae aetosaurs (Archosauria: Pseudosuchia) from the Upper Triassic of Argentina and Brazil. Lethaia, doi: 10.1111/j.1502-3931.2010.00252.x.
  • CERDA, I. A. and POWELL, J. E. 2010. Dermal armor histology of Saltasaurus loricatus, an Upper Cretaceous sauropod dinosaur from Northwest Argentina. Acta Palaeontologica Polonica, 55, 389–398.
  • CHATTERJEE, S. and MAJUMDAR, P. K. 1987. Tikisuchus romeri, a new rauisuchid reptile from the Late Triassic of India. Journal of Paleontology, 61, 787–793.
  • CHINSAMY, A. 1994. Dinosaur bone histology: implications and inferences. 213–227. In ROSENBERG, G. D. and WOLBERG, D. L. (eds). Dino Fest Paleontological Society Special Publication No. 7.
  • D’EMIC, M. D., WILSON, J. A. and CHATTERJEE, S. 2009. The titanosaur (Dinosauria: Sauropoda) osteoderm record: review and first definitive specimen from India. Journal of Vertebrate Paleontology, 29, 165–177.
  • DESOJO, J. B. and ARCUCCI, A. B. 2009. New material of Luperosuchus fractus (Archosauria: Crurotarsi) from the Middle Triassic of Argentina: the earliest known South American ‘rauisuchian’. Journal of Vertebrate Paleontology, 29, 1311–1315.
  • DESOJO, J. B. and RAUHUT, O. W. M. 2008. New insights on ‘rauisuchian’ taxa (Archosauria: Crurotarsi) from Brazil. 18–19. In DYKE, G., NAISH, D. and PARKES, M. (eds). SVPCA 2008 Dublin. 3–5 September 2008, National Museum of Ireland, Dublin, 31 pp.
  • DESOJO, J. B. and RAUHUT, O. W. M. 2009. The taxonomic status and phylogenetic position of the Late Triassic Brazilian rauisuchian Prestosuchus. Journal of Vertebrate Paleontology, 29, 87A–88A.
  • FREY, E. 1988. Das Tragsystem der Krokodile – eine biomechanische und phylogenetische Analyse. Stuttgarter Beitrge zur Naturkunde Serie A (Biologie), 426, 1–60.
  • FURRER, H. 2009. So kam der Fisch auf den Berg – Eine Broschüre über die Fossilfunde am Ducan. Bündner Naturmuseum Chur und Palontologisches Institut und Museum, 2. aktualisierte Auflage, 32 pp.
  • GIRONDOT, M. and LAURIN, M. 2003. Bone profiler: a tool to quantify, model, and statistically compare bone-section compactness profiles. Journal of Vertebrate Paleontology, 23, 458–461.
  • GOWER, D. J. 1999. The cranial and mandibular osteology of a new rauisuchian archosaur from the Middle Triassic of southern Germany. Stuttgarter Beitrge zur Naturkunde, Serie B, 280, 1–49.
  • GOWER, D. J. 2000. Rauisuchian archosaurs (Reptilia, Diapsida): an overview. Neues Jahrbuch für Geologie und Palontologie, Abhandlungen, 218, 447–488.
  • GOWER, D. J. and NESBITT, S. J. 2006. The braincase of Arizonasaurus babbitti– further evidence for the non-monophyly of ‘rauisuchian’ archosaurs. Journal of Vertebrate Paleontology, 26, 79–87.
  • GOWER, D. J. and SCHOCH, R. R. 2009. Postcranial anatomy of the rauisuchian archosaur Batrachotomus kupferzellensis. Journal of Vertebrate Paleontology, 29, 103–122.
  • HAYASHI, S., CARPENTER, K., SCHEYER, T. M., WATABE, M. and SUZUKI, D. 2010. Function and evolution of ankylosaur dermal armor. Acta Palaeontologica Polonica, 55, 213–228.
  • HECKERT, A. B., LUCAS, S. G., RINEHART, L. F., CELESKEY, M. D., SPIELMANN, J. A. and HUNT, A. P. 2010. Articulated skeletons of the aetosaur Typothorax coccinarum Cope (Archosauria: Stagonolepididae) from the Upper Triassic Bull Canyon Formation (Revueltian: early-mid Norian), eastern New Mexico, USA. Journal of Vertebrate Paleontology, 30, 619–642.
  • HILL, R. 2005. Integration of morphological data sets for phylogenetic analysis of Amniota: the importance of integumentary characters and increased taxonomic sampling. Systematic Biology, 54, 530–547.
  • HUA, S. and BUFFRÉNIL, V. de 1996. Bone histology as a clue in the interpretation of functional adaptations in the Thalattosuchia (Reptilia, Crocodylia). Journal of Vertebrate Paleontology, 16, 703–717.
  • HUENE, F. von 1938. Die fossilen Reptilien des südamerikanischen Gondwanalandes. Neues Jahrbuch für Mineralogie, Geologie und Palontologie, Referate 3, 1938, 142–151.
  • HUTTON, J. M. 1986. Age determination of living Nile crocodiles from the cortical stratification of bone. Copeia, 2, 332–341.
  • KLEIN, N., SCHEYER, T. and TÜTKEN, T. 2009. Skeletochronology and isotopic analysis of a captive individual of Alligator mississippiensis Daudin, 1802. Fossil Record, 12, 121–131.
  • KREBS, B. 1965. E. Kuhn-Schnyder und B. Peyer: Die Triasfauna der Tessiner Kalkalpen. XIX. Ticinosuchus ferox nov. gen. nov. sp. Abhandlungen der schweizerischen Palontologischen Gesellschaft, 81, 1–140.
  • MAIN, R. P., RICQLÈS, A. de, HORNER, J. R. and PADIAN, K. 2005. The evolution and function of thyreophoran dinosaur scutes: implications for plate function in stegosaurs. Paleobiology, 31, 291–314.
  • NESBITT, S. J. 2005. Osteology of the Middle Triassic pseudosuchian archosaur Arizonasaurus babbitti. Historical Biology, 17, 19–47.
  • NESBITT, S. J. 2007. The anatomy of Effigia okeeffeae (Archosauria, Suchia), theropod-like convergence, and the distribution of related taxa. American Museum of Natural History, Bulletin, 302, 1–84.
  • NESBITT, S. J. 2009. The antiquity of Archosauria and the origin of Late Triassic archosaur assemblages. Journal of Vertebrate Paleontology, SVP Program and Abstracts Book, 2009, 155A.
  • PADIAN, K., RICQLÈS, A. de and HORNER, J. R. 2001. Dinosaurian growth rates and birds origins. Nature, 412, 405–408.
  • PARKER, W. G., IRMIS, R. B., NESBITT, S. J., MARTZ, J. W. and BROWNE, L. S. 2005. The Late Triassic pseudosuchian Revueltosaurus callenderi and its implications for the diversity of early ornithischian dinosaurs. Proceedings of the Royal Society of London, Series B, 272, 963–969.
  • PARKER, W. G., STOCKER, M. R. and IRMIS, R. B. 2008. A new desmatosuchine aetosaur (Archosauria: Suchia) from the Upper Triassic Tecovas Formation (Dockum Group) of Texas. Journal of Vertebrate Paleontology, 28, 692–701.
  • RICQLÈS, A. de, PADIAN, K. and HORNER, J. R. 2003. On the bone histology of some Triassic pseudosuchian archosaurs and related taxa. Annales de Paléontologie, 89, 67–101.
  • RICQLÈS, A. de, PADIAN, K., KNOLL, F. and HORNER, J. R. 2008. On the origin of high growth rates in archosaurs and their ancient relatives: complementary histological studies on Triassic archosauriforms and the problem of a ‘phylogenetic signal’ in bone histology. Annales de Paléontologie, 94, 57–76.
  • RIEPPEL, O. 2002. The dermal armor of the cyamodontoid placodonts (Reptilia, Sauropterygia): morphology and systematic value. Fieldiana: Geology, New Series, 46(1517), 1–41.
  • ROMER, A. S. 1966. Vertebrate paleontology, Third Edition. University of Chicago Press, Chicago, 468 pp.
  • ROMER, A. S. 1971. The Chañares (Argentina) Triassic reptile fauna. VIII. A fragmentary skull of a large thecodont, Luperosuchus fractus. Breviora, 373, 1–8.
  • ROSSMANN, T. 2000. Skelettanatomische Beschreibung von Pristichampsus rollinatii (Gray) (Crocodilia, Eusuchia) aus dem Palogen von Europa, Nordamerika und Ostasien. Courier Forschungsinstitut Senckenberg, 221, 1–107.
  • SALISBURY, S. W. and FREY, E. 2001. A biomechanical transformation model for the evolution of semi-spheroidal articulations between adjoining vertebral bodies in crocodilians. 85–134. In GRIGG, G. C., SEEBACHER, F. and FRANKLIN, C. E. (eds). Crocodilian biology and evolution. Surrey Beatty & Sons, Chipping Norton, NSW, 445 pp.
  • SCHEYER, T. M. 2007. Skeletal histology of the dermal armor of Placodontia: the occurrence of ‘postcranial fibro-cartilaginous bone’ and its developmental implications. Journal of Anatomy, 211, 737–753.
  • SCHEYER, T. M. 2008. Aging the oldest turtles: the placodont affinities of Priscochelys hegnabrunnensis. Naturwissenschaften, 95, 803–810.
  • SCHEYER, T. M. and SANDER, P. M. 2004. Histology of ankylosaur osteoderms: implications for systematics and function. Journal of Vertebrate Paleontology, 24, 874–893.
  • SCHEYER, T. M. and SANDER, P. M. 2009. Bone microstructures and mode of skeletogenesis in osteoderms of three pareiasaur taxa from the Permian of South Africa. Journal of Evolutionary Biology, 22, 1153–1162.
  • SCHEYER, T. M., KLEIN, N. and SANDER, P. M. 2010. Developmental palaeontology of Reptilia as revealed by histological studies. In SÁNCHEZ-VILLAGRA, M. R. (ed.). Developmental vertebrate palaeontology. Seminars in Cell and Developmental Biology, 21, 462–470.
  • SCHMIDT, W. J. 1914. Studien am Integument der Reptilien. VI. Über die Knochenschuppen der Crocodile. Zoologische Jahrbücher, 38, 643–666.
  • SEIDEL, M. R. 1979. The osteoderms of the American alligator and their functional significance. Herpetologica, 35, 375–380.
  • SEN, K. 2005. A new rauisuchian archosaur from the Middle Triassic of India. Palaeontology, 48, 185–196.
  • SEYMOUR, R. S., BENNETT-STAMPER, C. L., JOHNSTON, S. D., CARRIER, D. R. and GRIGG, G. C. 2004. Evidence for endothermic ancestors of crocodiles at the stem of archosaur evolution. Physiological and Biochemical Zoology, 77, 1051–1067.
  • TROTTEYN, M. J., DESOJO, J. B. and ALCOBER, O. A. 2011. Nuevo material postcraneano de Saurosuchus galilei Reig (Archosauria: Crurotarsi) del Triásico Superior del centro-oeste de Argentina. Ameghiniana, 48, 13–27.
  • TUCKER, A. D. 1997. Validation of skeletochronology to determine age of freshwater crocodiles (Crocodylus johnstoni). Marine and Freshwater Research, 48, 343–351.
  • VICKARYOUS, M. K. and HALL, B. K. 2008. Development of the dermal skeleton in Alligator mississippiensis (Archosauria, Crocodylia) with comments on the homology of osteoderms. Journal of Morphology, 269, 398–422.
  • WEINBAUM, J. C. and SIRE, J. Y. 2009. The integumentary skeleton of tetrapods: origin, evolution, and development. Journal of Anatomy, 214, 441–464.
  • WEINBAUM, J. C. and HUNGERBÜHLER, A. 2007. A revision of Poposaurus gracilis (Archosauria: Suchia) based on two new specimens from the Late Triassic of the southwestern U.S.A. Palontologische Zeitschrift, 81, 131–145.
  • WESTPHAL, F. 1976. The dermal armour of some Triassic placodont reptiles. 31–41. In BELLAIRS, A. d.’A. and COX, C. B. (eds). Linnean Society symposium series No. 3. Morphology and biology of reptiles. Academic Press, London, 290 pp.
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