Artículo

El editor no permite incluir ninguna versión del artículo en el Repositorio.
Consulte la política de Acceso Abierto del editor

Abstract:

Fragmentary remains of a new heterodontosaurid species, comparable to Heterodontosaurus Crompton and Charig, were discovered in concretions in the Laguna Colorada Formation, a Late Triassic continental sequence in Santa Cruz Province, Argentina. The material consists of a weathered, left posterior maxillary fragment with dentition, and, tentatively, an isolated caniniform with anterior and posterior serrations. The preserved three maxillary teeth bear flat wear facets, and are columnar and closely packed. The anterior and posterior surfaces of the crowns are in contact, a feature considered a synapomorphy of Heterodontosaurus and Lycorhinus from the Early Jurassic upper Stormberg Group of southern Africa. As in Heterodontosaurus tucki Crompton and Charig, the maxillary teeth lack a cingulum or a constriction separating crown and root, and the wear facets of adjoining teeth form a single, continuous surface. However, the posterior maxillary teeth bear more numerous and narrower ridges on their labial surfaces than those of H. tucki. This new record of a heterodontosaurid extends the temporal range of this group of small ornithischians and, considering the phylogeny of ornithischians as now understood, indicates an extensive phyletic diversification of these dinosaurs in the Late Triassic.

Registro:

Documento: Artículo
Título:A heterodontosaurid ornithischian dinosaur from the Upper Triassic of Patagonia
Autor:Béz, A.M.; Marsicano, C.A.
Filiación:Dept. de Ciencias Geologicas, Facultad de Ciencias Exactas y Nat., Universidad de Buenos Aires, Buenos Aires 1428, Argentina
Palabras clave:Dinosauria; Heterodontosaurudae; Ornithischia; Patagonia; Triassic; dinosaur; new species; Triassic; Argentina; Heterodontosaurus
Año:2001
Volumen:38
Número:3
Página de inicio:271
Página de fin:279
Título revista:Ameghiniana
Título revista abreviado:Ameghiniana
ISSN:00027014
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v38_n3_p271_Bez

Referencias:

  • Attridge, J., Crompton, A.W., Jenkins, F.A., The Southern African Liassic prosauropod Massospondylus discovered in North American (1985) Journal of Vertebrate Paleontology, 5, pp. 128-132
  • Báez, A.M., Marsicano, C.A., First record of the ornithischian dinosaur Heterodontosaurus from South America (1997) Ameghiniana, 34, p. 531
  • Báez, A.M., Marsicano, C.A., A heterodontosaurian ornithischian in the Upper Triassic of Southern Patagonia? (1998) Journal of African Earth Sciences, 27, pp. 32-33
  • Barrett, P.M., A reassessment of the enigmatic ornithischian Echinodon becklessi (1999) Journal of Vertebrate Paleontology, 19 (3 SUPPL.), pp. 31A
  • Bonaparte, J.F., Pisanosaurus mertii Casamiquela and the origin of the Ornithischia (1976) Journal of Paleontology, 50, pp. 808-820
  • Bonaparte, J.F., El Mesozoico de América del Sur y sus tetrápodos (1978) Opera Lilloana, 26. , Tucumán, 596 p
  • Bonaparte, J.F., (1997) El Triásico De San Juan-La Rioja Argentina Y Sus Dinosaurios, , Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, 190 p
  • Bonaparte, J.F., Vince, M., El hallazgo del primer nido de dinosaurios triásicos (Saurisquia, Prosauropoda), Triásico Superior de Patagonia (1979) Ameghiniana, 16, pp. 173-182
  • Bonetti, M.R.I., Breve noticia sobre los conocimientos actuales de la flora triásica de El Tranquilo, provincia de Santa Cruz (1964) Ameghiniana, 3, p. 182
  • Broom, R., On the dinosaurs of the Stormberg, South Africa (1911) Annals of the South African Museum, 7, pp. 291-308
  • Casamiquela, R.M., Un nuevo dinosaurio ornitisquio triásico (Pisanosaurus mertii; Ornithopoda) de la Formación Ischigualasto, Argentina (1967) Ameghiniana, 5, pp. 47-64
  • Casamiquela, R.M., The presence of the genus Plateosaurus (Sauropodomorpha) in the Upper Triassic of the El Tranquilo Formation, Patagonia (1977) 4th International Gondwana Symposium (Calcutta), pp. 30-31. , Abstracts
  • Casamiquela, R.M., La presencia del género Plateosaurus (Prosauropoda) en el Triásico superior de la Formación El Tranquilo, Patagonia (1980) 2° Congreso Argentino De Paleontologia Y Bioestratigrafia Y 1° Congreso Latinoamericano De Paleontologia (Buenos Aires, 1977), Actas, 1, pp. 143-158
  • Caselli, A.T., Marsicano, C.A., Arcucci, A.B., Sedimentologia y paleontologia de la Formación Los Colorados, Triásico Superior (provincias de La Rioja y San Juan, Argentina) (2001) Revista De La Asociación Geológica Argentina, 56, pp. 173-188
  • Charig, A.J., Crompton, A.W., The alleged synonymy of Lycorhinus and Heterodontosaurus (1974) Annals of the South African Museum, 64, pp. 167-189
  • Cox, K.G., Karoo igneous activity, and the early stages of the break-up of Gondwanaland (1992) Geological Society Special Publication, 68, pp. 137-148. , B.C. Storey, T. Alabaster, and R.J. Pankhurst (eds.), Magmatism and the causes of continental break-up Geological Society of London
  • Crompton, A.W., Attridge, J., Masticatory apparatus of the larger herbivores during Late Triassic and Early Jurassic times (1986) The Beginning of the Age of Dinosaurs, pp. 223-236. , K. Padian (ed.), Cambridge University Press
  • Crompton, A.W., Charig, A.J., A new ornithischian from the Upper Triassic of South Africa (1962) Nature, 196, pp. 1074-1077
  • Dalziel, I.W.D., Grunow, A.M., Late Gondwanide tectonic rotations within Gondwanaland (1992) Tectonics, 11, pp. 603-606
  • Di Persia, C.A., (1956) [Informe Previo Al Levantamiento Geológico En Escala 1:100.000 De La Zona Norte De La Provincia Patagonia, Al Sur Del Rio Deseado (3ra. Campaña), , Yacimientos Petroliferos Fiscales, Buenos Aires. 56 p. Informe inédito]
  • Golonka, J., Ross, M.I., Scotese, C.R., Phanerozoic Paleogeographic and Paleoclimatic modelling maps (1994) Canadian Society of Petroleum Geologists, Memoir, 17, pp. 1-47. , A.F. Embry, B. Beauchamp and D.J. Glass (eds.), Pangea: global environments and resources. Alberta, Canada
  • Gow, C.E., A new heterodontosaurid from the Redbeds of South Africa showing clear evidence of tooth replacement (1975) Zoological Journal of the Linnean Society of London, 57, pp. 335-339
  • Gow, C.E., A tooth-bearing maxilla referable to Lycorhinus angustidens Haughton, 1924 (Dinosauria, Ornithischia) (1990) Annals of the South African Museum, 99, pp. 367-380
  • Gow, C.E., The skull of Protosuchus haughtoni, an early Jurassic crocodyliform from Southern Africa (2000) Journal of Vertebrate Paleontology, 20, pp. 49-56
  • Haughton, S.M., The fauna and stratigraphy of the Stormberg series (1924) Annals of the South African Museum, 12, pp. 323-497
  • Herbst, R., Algunos datos geológicos y estratigráficos de la zona Estancia Roca Blanca y alrededores, provincia de Santa Cruz (1961) Ameghiniana, 4, pp. 55-60
  • Herbst, R., La flora fósil de la Formación Roca Blanca, provincia de Santa Cruz, Patagonia. Con consideraciones geológicas y paleontológicas (1965) Opera Lilloana, 12, pp. 1-101
  • Hopson, J.A., On the generic separation of the ornithischian dinosaurs Lycorhinus and Heterodontosaurus from the Stormberg Series (Upper Triassic) of South Africa (1975) South African Journal of Science, 71, pp. 302-305
  • Hunt, A.P., Lucas, S.G., Ornithischian dinosaurs from the Upper Triassic of United States (1994) In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods, pp. 227-241. , N. Fraser and H.-D. Sues (eds.), Cambridge University Press
  • Jalfin, J.A., Herbst, R., La flora triásica del Grupo El Tranquilo, Provincia de Santa Cruz (Patagonia). Estratigrafia (1995) Ameghiniana, 32, pp. 211-229
  • Marshall, J.E.A., The Falkland Islands: A key element in Gondwana paleogeography (1994) Tectonics, 13, pp. 499-514
  • Olsen, P.E., Galton, P.M., A review of the reptile and amphibian assemblages from the Stormberg Group of Southern Africa with special emphasis on the footprints and the age of the Stormberg (1984) Palaeontologia Africana, 25, pp. 87-110
  • Pankhurst, R., Rapela, C.W., Márquez, M., Geocronologia y petrogénesis de los granitoides jurásicos del noreste del Macizo del Deseado (1993) 12° Congreso Geológico Argentino Y 3° Congreso De Exploración De Hidrocarburos (Mendoza), Actas, 4, pp. 134-141
  • Panza, J.L., Geologia. Hoja Geológica 4969-II Tres Cerros (1995) Dirección Nacional Del Servicio Geológico, Boletin, 213, pp. 11-76. , Buenos Aires
  • Peterson, F., Sand Dunes, sabkhas, streams, and shallow seas: Jurassic paleogeography in the southern part of the Western Interior Basin (1994) Mesozoic Systems of the Rocky Mountain Region, pp. 233-272. , M.V. Caputo, J.A. Peterson, and K.J. Franczyk (eds.), U.S.A. Society for Sedimentary Geology, C & M Press, Colorado
  • Richards, P.C., Gatliff, R.W., Quinn, M.F., Williamson, J.P., Fannin, N.G.T., The geological evolution of the Falkland Islands continental shelf (1996) Geological Society Special Publication, 108, pp. 105-128. , B.C. Storey, E.C. King, and R.A. Livermore (eds.), Weddell Sea Tectonics and Gondwana Break-up, Alden Press, Oxford, UK
  • Rogers, R., Swischer III, C., Sereno, P., Monetta, A., Forster, C., Martinez, R., The Ischigualasto tetrapod assemblage (Late Triassic, Argentina) and K/40 Ar/39 dating of dinosaur origins (1993) Science, 260, pp. 794-797
  • Sereno, P., Phylogeny of the bird-hipped dinosaurs (Order Ornithischia) (1986) National Geographic Research, 2, pp. 234-256
  • Sereno, P., Lesothosaurus, "Fabrosaurids", and the early evolution of Ornithischia (1991) Journal of Vertebrate Paleontology, 11, pp. 168-197
  • Sereno, P., The evolution of dinosaurs (1999) Science, 284, pp. 2137-2147
  • Shubin, N.H., Olsen, P.E., Sues, H.-D., Early Jurassic small tetrapods from the McCoy Brook Formation of Nova Scotia, Canada (1994) In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods, pp. 242-250. , N. Fraser and H.-D. Sues (eds.), Cambridge University Press
  • Spalletti, L., Artabe, A., Morel, E., Brea, M., Biozonación paleofloristica y cronoestratigrafia del Triásico argentino (1999) Ameghiniana, 36, pp. 419-451
  • Sues, H.-D., Clark, J.M., Jenkins F.A., Jr., A review of the Early Jurassic tetrapods from the Glen Canyon Group of the American Southwest (1994) In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods, pp. 284-294. , N. Fraser and H.-D. Sues (eds.), Cambridge University Press
  • Thulborn, R.A., The systematic position of the Triassic ornithischian dinosaur Lycorhrinus angustidens (1970) Zoological Journal of the Linnean Society of London, 49, pp. 235-245
  • Thulborn, R.A., A new heterodontosaurid dinosaur (Reptilia: Ornithischia) from the Upper Triassic red beds of Lesotho (1974) Zoological Journal of the Linnean Society of London, 55, pp. 151-175
  • Uliana, M.A., Biddle, K.T., Mesozoic-Cenozoic paleogeographic and paleodynamic evolution of Southern South America (1988) Revista Brasileira De Geociências, 18, pp. 172-190
  • Veevers, J.J., Powell, C., Collinson, J.W., López-Gamundi, O.R., Synthesis (1994) Geological Society of America Memoir, 184, pp. 331-353. , J.J. Veevers and C. Powell (eds.), Permian-Triassic Pangean basins and foldbelts along the Panthalassan margin of Gondwanaland. Geological Society of America, Colorado
  • Visser, J.N.J., The tectono-geographic evolution of part of Southwestern Gondwana during the Carboniferous and Permian (1993) 12th International Congrès Du Carboniferous-Permien (Buenos Aires, 1991), 1, pp. 447-454. , Comptes Rendus
  • Weishampel, D., Heinrich, L., Systematics of Hypsilophodontidae and basal Iguanodontia (Dinosauria: Ornithopoda) (1992) Historical Biology, 6, pp. 159-184
  • Weishampel, D., Witmer, L., Heterodontosauridae (1990) The Dinosauria, pp. 486-497. , D. Weishampel, P. Dodson, and H. Osmolska (eds.), University of California Press
  • Young, C.C., On a new genus of dinosaur from Lufeng, Yunnan (1982) Collected Papers of Yang Zhong Jian (Young Chung-Chien), pp. 38-42. , Beijing Science Press (In Chinese)
  • Zavattieri, A.M., Palinologia de la Formación El Tranquilo (Triásico), provincia de Santa Cruz, Argentina (1993) Ameghiniana, 29, pp. 305-314
  • Zavattieri, A.M., Batten, D.J., Miospores from the Argentinian Triassic and their potential for intercontinental correlation (1996) Palynology: Principles and Applications, 2, pp. 767-778. , J. Jansonius and D.C. McGregor (eds.), American Association of Stratigraphic Palinologists Foundation

Citas:

---------- APA ----------
Béz, A.M. & Marsicano, C.A. (2001) . A heterodontosaurid ornithischian dinosaur from the Upper Triassic of Patagonia . Ameghiniana, 38(3), 271-279.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v38_n3_p271_Bez [ ]
---------- CHICAGO ----------
Béz, A.M., Marsicano, C.A. "A heterodontosaurid ornithischian dinosaur from the Upper Triassic of Patagonia " . Ameghiniana 38, no. 3 (2001) : 271-279.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v38_n3_p271_Bez [ ]
---------- MLA ----------
Béz, A.M., Marsicano, C.A. "A heterodontosaurid ornithischian dinosaur from the Upper Triassic of Patagonia " . Ameghiniana, vol. 38, no. 3, 2001, pp. 271-279.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v38_n3_p271_Bez [ ]
---------- VANCOUVER ----------
Béz, A.M., Marsicano, C.A. A heterodontosaurid ornithischian dinosaur from the Upper Triassic of Patagonia . Ameghiniana. 2001;38(3):271-279.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v38_n3_p271_Bez [ ]