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A new unusual tapejarid (Pterosauria, Pterodactyloidea) from the Early Cretaceous Romualdo Formation, Araripe Basin, Brazil

Published online by Cambridge University Press:  23 September 2013

Alexander W. A. Kellner
Alexander W. A. Kellner*
Affiliation:
Laboratory of Systematics and Taphonomy of Fossil Vertebrates, Department of Geology and Paleontology, Museu Nacional/UFRJ, Quinta da Boa Vista s/n, São Cristóvão, 20940-040 Rio de Janeiro, RJ, Brazil Email: [email protected]
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Abstract

A new unusual tapejarid pterosaur from the Early Cretaceous Romualdo Formation (Araripe Basin, Brazil) is described, based on a skull, lower jaw and some postcranial elements. Caupedactylus ybaka gen. et sp. shows the typical high nasoantorbital fenestra of the Thalassodrominae but lacks a palatal ridge, and shares with the Tapejarinae several features, including a downturned rostral end, allowing its allocation to that clade. Furthermore, the new species differs in having an anteriorly and posteriorly expanded premaxillary sagittal crest, the lacrimal process of the jugal strongly inclined, and a slit-like postpalatine fenestra, among other characters. The region of the left jugal-quadratojugal-quadrate shows a pathology that is likely the result of an infection. The lateral surface of the premaxillary crest presents grooves that were interpreted in other pterosaurs as impressions of blood vessels, corroborating growing evidence that cranial crests could have been involved in thermoregulation. Also, the new species has a well-preserved palate with a large palatine forming the anterior region of the choanae and the postpalatine fenestra and a secondary subtemporal fenestra. Since the latter has been regarded as unique to non-pterodactyloids, its occurrence in Caupedactylus demonstrates that the evolution of palatal region in pterosaurs is more complex than previously thought.

Keywords

CaupedactyluspalaeontologysystematicsTapejaridae
Type
Articles
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 103 , Issue 3-4: The Full Profession: A Celebration of the Life and Career of Wann Langston, Jr., Quintessential Vertebrate Palaeontologist , September 2012 , pp. 409 - 421
Copyright
Copyright © The Royal Society of Edinburgh 2013 

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References

6. References

Andres, B. & Ji, Q. 2008. A new pterosaur from the Liaoning Province of China, the phylogeny of the Pterodactyloidea, and convergence in their cervical vertebrae. Palaeontology 51 (2), 453–69.Google Scholar
Assine, M. L. 2007. Bacia do Araripe. Boletim de Geociências da Petrobras 15 (2), 371–89.Google Scholar
Bennett, S. C. 1993. The ontogeny of Pteranodon and other pterosaurs. Paleobiology 19 (1), 92–106.Google Scholar
Bennett, S. C. 2001. The osteology and functional morphology of the Late Cretaceous Pterosaur Pteranodon. Palaeontographica Abt. A 260, 1–112.CrossRefGoogle Scholar
Beurlen, K. 1971. As condições ecológicas e faciológicas da Formação Santana na Chapada do Araripe (Nordeste do Brasil). Anais da Academia Brasileira de Ciências 43, 411–15.Google Scholar
Cai, Z. & Wei, F. 1994. On a new pterosaur (Zhejiangopterus linhaiensis gen et sp nov.) from Upper Cretaceous in Linhai, Zhejiang, China. Vertebrata PalAsiatica 32 (3), 181–94.Google Scholar
Campos, D. A. & Kellner, A. W. A. 1985. Panorama of the Flying Reptiles Study in Brazil and South America. Anais da Academian Brasileira de Ciências 57 (4), 453–66.Google Scholar
Campos, D. A. & Kellner, A. W. A. 1997. Short Note on the First Occurrence of Tapejaridae in the Crato Member (Aptian), Santana Formation, Araripe Basin, Northeast Brazil. Anais da Academia Brasileira de Ciências 69 (1), 83–87.Google Scholar
Eck, K., Elgin, R. A. & Frey, E. 2011. On the osteology of Tapejara wellnhoferi Kellner 1989 and the first occurrence of multiple specimen assemblage from the Santana Formation, Araripe Basin, NE-Brazil. Swiss Journal of Palaeontology 130 (2), 277–96.CrossRefGoogle Scholar
Fastnacht, M. 2001. First record of Coloborhynchus (Pterosauria) from the Santana Formation (Lower Cretaceous) of the Chapada do Araripe, Brazil. Paläontologische Zeitschrift 75 (1), 3–36.Google Scholar
Frey, E., Martill, D. M. & Buchy, M. C. 2003. A new crested ornithocheirid from the Lower Cretaceous of northeastern Brazil and the unusual death of an unusual pterosaur. In Buffetaut, E. & Mazin, J. M. (eds) Evolution and palaeobiology of pterosaurs. Geological Society, London, Special Publications 217, 55–63. Bath, UK: The Geological Society Publishing House.Google Scholar
Hone, D. W. E. & Benton, M. J. 2007. An evaluation of the phylogenetic relationships of the pterosaurs to the archosauromorph reptiles. Journal of Systematic Palaeontology 5 (4), 465–69.Google Scholar
Howse, S. C. B., Milner, A. R. & Martill, D. M. 2001. Pterosaurs. In Martill, D. M. & Naish, D. (eds) Dinosaurs of the Isle of Wight, 324–55. London: The Palaeontological Association.Google Scholar
Kellner, A. W. A. 1996. Reinterpretation of a remarkably well-preserved pterosaur soft tissue from the Early Cretaceous of Brazil. Journal of Vertebrate Paleontology 16 (4), 718–22.Google Scholar
Kellner, A. W. A. 2003. Pterosaur phylogeny and comments on the evolutionary history of the group. In Buffetaut, E. & Mazin, J. M. (eds) Evolution and palaeobiology of pterosaurs. Geological Society, London, Special Publications 217, 105–37. Bath, UK: The Geological Society Publishing House.Google Scholar
Kellner, A. W. A. 2004a. The ankle structure of two pterodactyloid pterosaurs from the Santana Formation (Lower Cretaceous), Brazil. Bulletin American Museum of Natural History 285, 25–35.Google Scholar
Kellner, A. W. A. 2004b. New information on the Tapejaridae (Pterosauria, Pterodactyloidea) and discussion of the relationships of this clade. Ameghiniana 41, 521–34.Google Scholar
Kellner, A. W. A. 2010. Comments on the Pteranodontidae (Pterosauria, Pterodactyloidea) with the description of two new species. Anais Academia Brasileira de Ciências 82 (4), 1063–84.CrossRefGoogle ScholarPubMed
Kellner, A.W.A., Campos, D. A., Sayão, J. M., Saraiva, A. A. F., Rodrigues, T., Oliveira, G., Cruz, L. A., Costa, F. R., Silva, H. P. & Ferreira, J. S. 2013. The largest flying reptile from Gondwana: a new specimen of Tropeognathus cf. T. mesembrinus Wellnhofer, 1987 (Pterodactyloidea, Anhangueridae) and other large pterosaurs from the Romualdo Formation, Lower Cretaceous, Brazil. Anais da Academia Brasileira de Ciências 85(1), 113–35.Google Scholar
Kellner, A. W. A. & Campos, D. A. 2002. The function of the cranial crest and jaws of a unique pterosaur from the Early Cretaceous of Brazil. Science 297 (5580), 389–92.Google Scholar
Kellner, A. W. A. & Campos, D. A. 2007. Short note on the ingroup relationships of the Tapejaridae (Pterosauria, Pterodactyloidea). Boletim do Museu Nacional – Geologia 75, 1–14.Google Scholar
Kellner, A. W. A. & Langston, W. Jr. 1996. Cranial remains of Quetzalcoatlus (Pterosauria, Azhdarchidae) from the Late Cretaceous Sediments of Big Bend National Park, Texas. Journal of Vertebrate Paleontology 16 (2), 222–31.Google Scholar
Kellner, A. W. A. & Tomida, Y. 2000. Description of a new species of Anhangueridae (Pterodactyloidea) with comments on the pterosaur fauna from the Santana Formation (Aptian-Albian), Northeastern Brazil. National Science Museum Monographs 17, 1–135.Google Scholar
Li, J. J., Lü, J. C. & Zhang, B. K. 2003. A new Lower Cretaceous sinopterid pterosaur from the western Liaoning, China. Acta Palaeontologica Sinica 42 (3), 442–46.Google Scholar
Lü, J., Jin, X., Unwin, D., Zhao, J., Azuma, Y. & Ji, Q. 2006. A new species of Huaxiapterus (Pterosauria: Pterodactyloidea) from the Lower Cretaceous of Western Liaoning, China with comments on the systematics of tapejarid pterosaurs. Acta Geologica Sinica 80 (3), 315–26.Google Scholar
Lü, J. C., Gao, Y., Xing, L., Li, Z. & Ji, Q. 2007. A new species of Huaxiapterus (Pterosauria: Tapejaridae) from the Early Cretaceous of Western Liaoning, China. Acta Geologica Sinica 81 (5), 683–87.Google Scholar
Lü, J., Unwin, D., Xu, L., & Zhang, Z. 2008. A new azhdarchoid pterosaur from the Lower Cretaceous of China and its implication for pterosaur phylogeny and evolution. Naturwissenschaften 95 (9), 891–97.Google Scholar
Lü, J., Xu, L., Chang, H. & Zhang, X. 2011. A new darwinopterid pterosaur from the Middle Jurassic of western Liaoning, northeastern China and its ecological implications. Acta Geologica Sinica 85 (3), 507–14Google Scholar
Lü, J. & Yuan, C. 2005. New tapejarid pterosaur from western Liaoning, China. Acta Geologica Sinica 79 (4), 453–58.Google Scholar
Maisey, J. (ed.) 1991. Santana fossils: an illustrated Atlas. Neptune, New Jersey: T.F.H. Publications. 459 pp.Google Scholar
Neumann, V. H. & Cabrera, L. 1999. Una nueva propuesta estratigráfica para la tecnosecuencia post-rifte de la cuenca de Araripe, Noreste de Brasil. 5° Simpósio sobre o Cretáceo do Brasil, Serra Negra 279–85.Google Scholar
Ösi, A., Prondvai, E., Frey, E. & Pohl, B. 2010. New interpretation of the palate of pterosaurs. The Anatomical Record 293 (2), 243–58.Google Scholar
Peters, D. 2000. A reexamination of four prolacertiforms with implications for pterosaur phylogenesis. Rivista Italiana di Paleontologia e Stratigrafia 106, 293–336.Google Scholar
Pinheiro, F. L., Fortier, D. C., Schultz, C. L., Andrade, J. A. F. G. de & Bantim, R. A. M. 2011. New information of the pterosaur Tupandactylus imperator, with comments on the relationships of Tapejaridae. Acta Palaeontologica Polonica 56 (3), 567–80.Google Scholar
Pons, D., Berthou, P. Y. & Campos, D. A. 1990. Quelques observations sur la palynologie de l'Aptien supérieur et del'Albien do bassin d'Araripe (N-E du Brasil). In Campos, D. A., Viana, M. S. S., Brito, P. M. & Beurlen, G. (eds) Atas do Simpósio sobre a Bacia do Araripe e Bacias interiores do Nordeste, 142–252.Google Scholar
Price, L. I. 1971. A presença de Pterosauria no Cretáceo Inferior da Chapada do Araripe, Brasil. Anais da Academia Brasileira de Ciências 43 (supl), 451–61.Google Scholar
Rodrigues, T. & Kellner, A. W. A. 2008. Review of the pterodactyloid Coloborhynchus. In Hone, D. W. E. & Buffetaut, E. (eds) Flugsaurier: pterosaur papers in honour of Peter Wellnhofer. Zitteliana B 28, 210–28.Google Scholar
Unwin, D. M. 2003. On the phylogeny and evolutionary history of pterosaurs.In Buffetaut, E. & Mazin, J. M. (eds) Evolution and palaeobiology of pterosaurs. Geological Society, London, Special Publications 217, 139–90. Bath, UK: The Geological Society Publishing House.Google Scholar
Unwin, D. M. & Lü, J. 1997. On Zhejiangopterus and the relationships of pterodactyloid pterosaurs. Historical Biology 12 (3–4), 199–210.Google Scholar
Vila Nova, B. C., Saraiva, A. A. F., Moreira, J. K. R. & Sayão, J. M. 2011. Controlled excavations in the Romualdo Formation lagerstätte (Araripe Basin, Brazil) and pterosaur diversity: remarks based on new findings. Palaios 26 (3), 173–79.Google Scholar
Vullo, R., Marugán-Lobón, J., Kellner, A. W. A., Buscalioni, A. G., Gomez, B., Fuente, M. & Moratalla, J. J. 2012. A New Crested Pterosaur from the Early Cretaceous of Spain: The First European Tapejarid (Pterodactyloidea: Azhdarchoidea). Plos One 7, e38900. doi:10.1371/journal.pone.0038900.Google Scholar
Wang, X. L., Campos, D. A., Zhou, Z. H. & Kellner, A. W. A. 2008. A primitive istiodactylid pterosaur (Pterodactyloidea) from the Jiufotang Formation (Early Cretaceous), northeast China. Zootaxa 1813, 1–18.Google Scholar
Wang, X. L., Kellner, A. W. A., Jiang, S. X., Cheng, X., Meng, X. & Rodrigues, T. 2010. New long-tailed pterosaurs (Wukongopteridae) from western Liaoning, China. Anais da Academia Brasileira de Ciências 82 (4), 1045–62.Google Scholar
Wang, X. & Zhou, Z. 2002. [A new pterosaur (Pterodactyloidea, Tapejaridae) from the Early Cretaceous Jiufotang Formation of western Liaoning, China and its implication for biostratigraphy.] Chinese Science Bulletin 47, 1521–28. [In Chinese. Translation: Chinese Science Bulletin (2003) 48 (1), 16–23.]Google Scholar
Wang, X. & Zhou, Z. 2006. Pterosaur assemblages of the Jehol Biota and their implication for the Early Cretaceous pterosaur radiation. Geological Journal 41 (3–4), 405–18.Google Scholar
Wellnhofer, P. 1975. Die Rhamphorhynchoidea (Pterosauria) der Oberjura-Plattenkalke Süddeutschlands. I: Allgemeine Skeltettmorphologie. Paläontographica A 148, 1–33.Google Scholar
Wellnhofer, P. 1978. Pterosauria. Handbuch der Palaeoherpetologie Teil 19. Stuttgart: Gustav Fischer Verlag. 82 pp.Google Scholar
Wellnhofer, P. 1985. Neue Pterosaurier aus der Santana Formation (Apt) der Chapada do Araripe. Palaeontographica A 187, 105–82.Google Scholar
Wellnhofer, P. 1991. The illustrated encyclopedia of pterosaurs. London: Salamander Books. 192 pp.Google Scholar
Witton, M. P. 2008. A new azhdarchoid pterosaur from the Crato Formation (Lower Cretaceous, Aptian?) of Brazil. Palaeontology 51 (6), 1289–1300.Google Scholar
Witton, M. P. 2009. A new species of Tupuxuara (Thalassodromidae, Azhdarchoidea) from the Lower Cretaceous Santana Formation of Brazil, with a note on the nomenclature of Thalassodromidae. Cretaceous Research 30 (5), 1293–300.Google Scholar
Young, C. C. 1973. Reports of Paleontological Expedition to Sinkiang (II). Pterosaurian Fauna from Wuerho, Sinkiang. Memoires of the Institute of Vertebrate Palaeontology and Paleoanthropology, Acadia Sinica 11, 18–35.Google Scholar