A new early dinosaur (Sauropodomorpha) from the Caturrita Formation (Late Triassic), Paran Basin, Brazil

Zootaxa - Tập 690 Số 1

Luciano Artemio Leal¹, Sergio Alex Kugland de Azevedo¹, Alexander W. A. Kellner¹, Átila Augusto Stock Da‐Rosa²

¹Setor de Paleovertebrados, Departamento de Geologia e Paleontologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista s/n, São Cristóvão, Rio de Janeiro, Brasil CEP 20940-040

²Laboratório de Estratigrafia e Paleobiologia, Departamento de Geociências, Universidade Federal de Santa Maria, Campus, Faixa de Camobi km 09, prédio 17, Santa Maria, Rio Grande do Sul, Brasil CEP 97105-900

Tóm tắt

A new early dinosaur, Unaysaurus tolentinoi gen. et sp. nov., from the continental Late Triassic red beds of the Caturrita Formation (Carnian-Norian, c. 225 million years old) of southern Brazil is described. U. tolentinoi is represented by a semi-articulated skeleton comprising an almost complete skull, lower jaw and postcranial elements. It differs from all other dinosaurs by several cranial (e.g. developed laterodorsally oriented process formed by frontal and parietal; deep ventral depression on the basisphenoid) and postcranial (presence of a conspicuous blunt ridge running on the lateral surface of the deltopectoral crest of humerus) characters. Unaysaurus represents the first prosauropod grade dinosaur from Brazil and a preliminary phylogenetic analysis indicates it to be closely related to the European Plateosaurus (Plateosauridae). The relationships of the Prosauropoda , however, are still controversial and more comprehensive studies are needed before a clear picture of the evolution and paleobiogeographic distributions of these dinosaurs can be presented.

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Tài liệu tham khảo

Andreis, R.R., Bossi, G.E. & Montardo, D.K. (1980) O Grupo Rosário do Sul (Triássico) do Rio Grande do Sul. Anais 31o Congresso Brasileiro de Geologia, Sociedade Brasileira de Geologia, Camboriú, 2, 659–673.Barberena, M.C., Araújo, D.C. & Lavina, E.L.C. (1985) Late Permian and Triassic tetrapods of Southern Brazil. National Geographic Research, 1(1), 5–20.Benton, M.J. (1983) Dinosaur success in the Triassic: a noncompetitive ecological model. The Quarterly Review of Biology, 58(1), 29–55.Benton, M.J. (1990) Origin and interrelationships of dinosaurs. In Weishampel, D.B. Dodson, P. & Osmólska H. (Eds.). The dinosauria, University of California Press, Berkeley, California, pp. 11–30.Benton, M.J., Juul, L., Storrs, G.W. & Galton, P.M. (2000) Anatomy and systematics of the prosauropod dinosaur Thecodontosaurus antiquus from the Upper Triassic of Southwest England. Journal of Vertebrate Paleontology, 20(1), 77–108.Bonaparte, J.F. (1971) Los tetrapodos del sector superior de la Formacion Los Colorados, La Rioja, Argentina (Triásico Superior) I. Parte. Opera Lilloana, 22, 1–183.Bonaparte, J.F. (1978) Coloradia brevis n. g. et n. sp. (Saurischia Prosauropoda), Dinosaurio Plateosauridae de la Formacion Los Colorados, Triasico Superior de La Rioja, Argentina. Ameghiniana, 15(3–4), 327–332.Bonaparte, J.F. (1997) El Triasico de San Juan – La Rioja Argentina y sus dinosaurios. Museo Argentino de Ciencias Naturales, Buenos Aires, 190pp.Bonaparte, J.F., & Pumares, J.A. (1995) Notas sobre el primer craneo de Riojasaurus incertus (Dinosauria, Prosauropoda, Melanosauridae) del Triasico Superior da La Rioja, Argentina. Ameghiniana, 32(4), 341–349.Bonaparte, J.F., Ferigolo, J., & Ribeiro, A.M. (1999) A New Early Late Triassic Saurischian Dinosaur from Rio Grande do Sul State, Brazil. Proceeding of The Second Gondwana Dinosaur Symposium, National Science Museum, Tokyo, 15, 89–109.Carvalho, I de S., Avilla, L. dos S., & Salgado, L. (2003) Amazonsaurus maranhensis gen. et sp. nov. (Sauropoda, Diplodocoidea) from the Lower Cretaceous (Aptian–Albian) of Brazil. Cretaceous Research, 24, 697–713.Casamiquela, R.M. (1980) La presencia del genero Plateosaurus (Prosauropoda) en el Triasico superior de la Formacion El tranquilo, Patagonia, Actas II Congreso Argentino de Paleontologia y Bioestratigrafia y I Congreso Latinoamericano de Paleontologia 1, 143–158.Colbert, E.H. (1970) A Saurischian Dinosaur from the Triassic of Brazil. American Museum Novitates, 2405, 1–39.Cooper, M.R. (1981) The prosauropod dinosaur Massospondylus carinatus Owen from Zimbabwe: its biology, mode of life and phylogenetic significance. Occasional Papers of the National Museums and Monuments of Rhodesia B, Natural Sciences, 6(10), 689–840.Da Rosa, A.A.S. & Leal, L.A. (2002) New elements of an armoured Archosaur from the Middle to Upper Triassic, Santa Maria Formation, South of Brazil. Arquivos do Museu Nacional, 60(3), 149–154.Galton, P.M. (1976) Prosauropod dinosaurs (Reptilia: Saurischia) of North America. Postilla, 169, 2–98.Galton, P.M. (1984) Cranial anatomy of the prosauropod dinosaur Plateosaurus from the Knollenmergel (Middle Keuper, Upper Triassic) of Germany. I. Two complete skulls from Trossingen/ Württ. With comments on the diet. Geologica et Palaeontologica, Marburg, 18, 139–171.Galton, P.M. (1990) Basal sauropodomorpha – prosauropoda. In Weishampel, D.B. Dodson, P., & Osmólska, H. (Eds.), The Dinosauria. University of California Press, Berkeley, California, pp. 320–344.Galton, P.M. (2000) Are Spondylosoma and Staurikosaurus (Santa Maria Formation, Middle-Upper Triassic, Brasil) the oldest saurischian dinosaurs? Palaontologische Zeitschrift, 74(3), 393–423.Galton, P.M. & Bakker, R.T. (1985) Cranial anatomy of the prosauropod dinosaur ‘Efraasia diagnostica’ a juvenile individual of Sellosaurus gracilis from the Upper Triassic of Norrdwittenberg, Germany, Stuttgarter beitrage Naturkunde, Serie B, 117, 1–15.Gauffre, F.-X. (1993) The prosauropod dinosaur Azendohsaurus laaroussii from the Upper Triassic of Morocco. Palaeontology, 36(4), 897–908.Gauthier, J. (1986) Saurischian Monophyly and the Origin of Birds. In Padian, K. (Ed.), The origin of birds and the evolution of flight: Memoirs of the California Academy of Sciences, San Francisco, 8, 1–55.Huene, F. von (1920) Bemerkungen zur Systematik und Stammesgeschichte einiger Reptilien. Zeit. Indukt. Abstamm.-Vererbungsl, 22, 209–212.Huene, F. von (1932) Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte. Monographien zur Geologie und Palaeontologie, 4, 1–361.Huene, F. von. (1942) Die fossilen Reptilien des sudamerikanischen Gondwanalandes. Ergebnisse der Sauriergrabuiigen in Sudbrasilien 1928/29 Beck'sche Verlagsbuchhandlung, Munich, 332pp.Kellner, A.W.A. & Campos, D.A. (2000) Brief review of dinosaur studies in Brazil. Anais da Academia Brasileira de Ciências, 72(4), 509–538.Kischlat, E.-E. (1999) A new dinosaurian 'rescued' from the Brazilian Triassic: Teyuwasu barbarenai, new táxon. Paleontologia em Destaque, Boletim Informativo da Sociedade Brasileira de Paleontologia 14(26):58.Langer, M.C., Abdala, F., Richter, M. & Benton, M.J. (1999) A Sauropodomorpha Dinosaur from the Upper Triassic (Carnian) of Southern Brazil. Comptes Rendus de l’Académie des Sciences, Sciences de la Terre et des Planètes. 329, 511–517.Langer, M.C. (2003) The pelvic and hind limb anatomy of the stem-sauropodomorph Saturnalia tupiniquim (Late Triassic, Brazil). PaleoBios, 23(2), 1–40.Leal, L.A. (2001) Descrição osteológica do crânio de um novo dinossauro Prosauropoda do Neotriássico do sul do Brasil. Unpublished MS thesis, Museu Nacional, Universidade Federal do Rio de Janeiro, 98 pp.Leal, L.A., Azevedo, S.A.K. & Da Rosa A.A.S. (2002) Icnofósseis do Sítio Fossilífero de Água Negra, Formação Caturrita, Neotriássico do Sul do Brasil. Arquivos do Museu Nacional, 60(3), 217–222.Lucas, S.G. (1998) Global Triassic tetrapod biostratigraphy and biochronology. Palaeogeography, Palaeoclimatology, Palaeoecology, 143, 347–384.Marsh, O.C. (1895) On the Affinities and classification of the dinosaurian reptiles. American Journal of Science, 50(3), 483–498.Novas, F.E. (1989) The tibia and tarsus in Herrerasauridae (Dinosauria, incertia sedis) and the origin and evolution of the dinosaurian tarsus. Journal of Paleontology, 63(5), 677–690.Rage, J.C. (1988) Gondwana, Tethys, and terrestrial vertebrates during Mesozoic and Cainozoic. In: Audley-Charles, M.G. & Hallam, A. (Eds.) Gondwana and Thethys. Geological Society Special Publication, 37, 255–273.Scherer, C.M.S., Faccini, U.F., Barberena, M.C., Schultz, C.L. & Lavina, E.L. (1995) Bioestratigrafia da Formação Santa Maria: utilização das cenozonas como horizontes de correlação. Revista Comunicações do Museu de Ciência e Tecnologia/UBEA/PUCRS - Série Ciências da Terra, 1, 43–50.Sereno, P.C. (1993) The pectoral girdle and forelimb of the basal Theropod Herrerasaurus ischigualastensis. Journal of Vertebrate Paleontology, 13(4), 425–450.Sereno, P.C. (1999) The evolution of Dinosauria. Science, 284, 2137–2146.Sereno, P.C. & Arcucci, A.B. (1993) Dinosaur precursors from the Middle Triassic of Argentina: Lagerpeton chanarensis. Journal of Vertebrate Paleontology, 13, 385–399.Sereno, P.C. & Novas, F.E. (1994) The skull and neck of the basal theropod Herrerasaurus ischigualastensis. Journal of Vertebrate Paleontology, 13(4), 451–476.Suess H.-D. (1990) Staurikosaurus and Herrerasauridae. In Weishampel, D.B. Dodson, P. & Osmólska, H. (Eds.), The Dinosauria. University of California Press, Berkeley, California, pp. 143–147.Yates, A.M. (2003a) A new species of the primitive dinosaur, Thecodontosaurus (Saurischia: Sauropodomorpha) and its implications for the systematics of early dinosaurs. Journal of Systematic Palaeontology, 1(1), 1–42.Yates, A.M. (2003b) The species taxonomy of the Sauropodomorph dinosaurs from the Löwenstein Formation (Norian, Late Triassic) of Germany. Palaeontology, 46(2), 317–337.Yates, A.M. & Kitching, J.W. (2003) The earliest known sauropod dinosaur and the first steps towards sauropod locomotion. Proceedings of Royal Society of London, series B Biological Sciences, 270(1525), 1753–1758.Young, C.-C. (1941) A complete osteology of Lufengosaurus huenei Young (gen. et sp. nov.) from Lufeng, Yunnan, China. Palaeontologia Sinica, 7, 1–53.Young, C.-C. (1942) Yunnanosaurus huangi Young (gen. et sp. nov.) a new Prosauropoda from the Red Beds at Lufeng, Yunnan. Bulletin of the Geological Society of China, 22(1/2), 63–104.

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