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Elasmaria
Elasmaria is a clade of Ornithopoda, ornithopods known from Cretaceous deposits in the former Gondwana (South America, Antarctica, Australia, and possibly Africa) that contains many bipedal ornithopods that were previously considered Hypsilophodont, "hypsilophodonts". Classification Calvo ''et al.'' (2007) coined Elasmaria to accommodate ''Macrogryphosaurus'' and ''Talenkauen'', which they recovered as basal iguanodonts distinct from other iguanodontians in having mineralized plates on the ribs. In 2016, a paper describing the genus ''Morrosaurus'' found Elasmaria to be far larger than its initial contents of two taxa, instead containing a variety of ornithopods from the Southern Hemisphere. In 2021, under the PhyloCode, Phylocode, Madzia ''et al.'' (2021) formally defined Elasmaria as "the smallest clade containing ''Macrogryphosaurus gondwanicus'' and ''Talenkauen santacrucensis'', provided that it does not include ''Hypsilophodon foxii'', ''Iguanodon bernissartensis'', or ''The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinisaura
''Trinisaura'' is a genus of ornithopod dinosaur that lived during the late Campanian stage of the Late Cretaceous, Upper Cretaceous, around 73 to 72 million years ago in what is now James Ross Island off the coast of northern Antarctica near Patagonia. It is known from a single, incomplete postcranial skeleton that includes several vertebrae, a partial pelvis, and nearly complete right hindlimb. The fossils were collected in 2008 by paleontologists Juan Moly and Rodolfo Coria from the sandstone of the Snow Hill Island Formation. It remained undescribed in the collections of the La Plata Museum, Museo de La Plata until its description by Coria and colleagues in 2013, being the basis of the novel genus and species ''Trinisaura santamartaensis''. The genus name is to commemorate the efforts of Argentine geologist Trinidad Diaz, Trinidad "Trini" Diaz and the Latin root ''-sauros'', meaning "lizard". The species name is after Santa Marta, Antarctica, Santa Marta Cove, where the fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galleonosaurus
''Galleonosaurus'' (meaning "galleon lizard" as the upper jaw bone resembles an upturned galleon) is a genus of basal ornithopod dinosaur from the Wonthaggi Formation of the Gippsland region of Victoria (Australia), Victoria, Australia. The type species, type and only species is ''Galleonosaurus dorisae''. Discovery and naming The original specimen that would form the basis for ''Galleonosaurus'' was discovered at the Flat Rocks locality of the Wonthaggi Formation in 2008 by palaeontologist Gerry Kool. This was the same site that the related ''Qantassaurus'', named nine years earlier in 1999, had been found.Poropat, SGalleono-saurus: A Flat Rocks Dinosaur.Dinosaur Dreaming 2019 Field Report, 20. Flat Rocks is thought to have been deposited 125 million years ago in the late Barremian age of the Cretaceous, and is today located near Inverloch, Victoria, Inverloch, Victoria (Australia), Victoria within the Bunurong Marine National Park, on a shoreline rock platform. During the Cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Talenkauen
''Talenkauen'' is a genus of Basal (phylogenetics), basal iguanodont dinosaur from the Campanian or Maastrichtian age of the Late Cretaceous Cerro Fortaleza Formation, formerly known as the Pari Aike Formation of Patagonian Lake Viedma, in the Magallanes Basin, Austral Basin of Santa Cruz Province (Argentina), Santa Cruz, Argentina. It is holotype, based on Museo Padre Molina, MPM-10001A, a partial articulated skeleton missing the rear part of the skull, the tail, and the hands. The type species, type and only species is ''Talenkauen santacrucensis''. Discovery and naming One among a string of discoveries of ornithopods in South America, following taxa such as ''Gasparinisaura'' and ''Anabisetia'', the specimen that would become ''Talenkauen'' was collected in February 2000 and would later be described and named in a short 2004 paper by Fernando E. Novas and colleagues. It was discovered on Los Hornos Hill on the coast of Viedma Lake, in the Santa Cruz Province (Argentina), Sant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isasicursor
''Isasicursor'' (meaning "Isasi's runner" after Marcelo Pablo Isasi) is a genus of elasmarian ornithopod from the Chorrillo Formation from Santa Cruz Province in Argentina. The type and only species is ''Isasicursor santacrucensis''. It was a contemporary of the sauropod '' Nullotitan'' which was described in the same paper.Novas, F., Agnolin, F., Rozadilla, S., Aranciaga-Rolando, A., Brissón-Eli, F., Motta, M., Cerroni, M., Ezcurra, M., Martinelli, A., D'Angelo, J., Álvarez-Herrera, G., Gentil, A., Bogan, S., Chimento, N., García-Marsà, J., Lo Coco, G., Miquel, S., Brito, F., Vera, E., Loinaze, V., Fernandez, M., & Salgado, L. (2019)Paleontological discoveries in the Chorrillo Formation (upper Campanian-lower Maastrichtian, Upper Cretaceous), Santa Cruz Province, Patagonia, Argentina Revista del Museo Argentino de Ciencias Naturales, 21(2), 217-293. Discovery and naming In 1980, geologist Francisco E. Nullo noticed the presence of sauropod bones on a hillside of the Estanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrogryphosaurus
''Macrogryphosaurus'' (meaning "big enigmatic lizard") is a genus of elasmarian dinosaur from the Coniacian age Upper Cretaceous Sierra Barrosa Formation (Neuquén Group) of Argentina in Patagonia. It was described by Jorge Calvo and colleagues in 2007, with ''M. gondwanicus'' as the type species, type and only species. Discovery and naming In May 1999, during field work at Mari Menuco Lake, Argentina (sixty kilometres northwest of Neuquén) conducted by the National University of Comahue, an articulated, nearly complete dinosaur skeleton was discovered and excavated. It was brought to the attention of the palaeontologists by young boy Rafael Moyano, who had discovered it. Originally reported to hail from the Portezuelo Formation of the Neuquén Group, its locality was later revised to be in the Sierra Barrosa Formation of the same geologic group. This unit is dated to the Coniacian Age (geology), age of the Late Cretaceous. Noted for bony plates on its thorax, it was identified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaellynasaura
''Leaellynasaura'' (meaning "Leaellyn's lizard") is a genus of small herbivorous ornithischian dinosaurs from the late Aptian to early Albian stage of the Early Cretaceous, around 118-110 million years ago.Holtz, Thomas R. Jr. (2012) ''Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages,'Winter 2011 Appendix./ref> It was first discovered in Dinosaur Cove, Australia. The only known species is ''Leaellynasaura amicagraphica''. It was described in 1989, and named after Leaellyn Rich, the daughter of the Australian palaeontologist couple Tom Rich and Patricia Vickers-Rich who discovered it. The specific name, ''amicagraphica'', translates to "friend writing" and honours both the Friends of the Museum of Victoria and the National Geographic Society for their support of Australian paleontology.Rich, T. and Rich, P. (1989). “Polar dinosaurs and biotas of the Early Cretaceous of southeastern Australia.” ''National Geographic Research'', 5(1): 15–5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tietasaura
''Tietasaura'' (meaning "Tieta lizard") is an extinct genus of elasmarian ornithopod dinosaur from the Early Cretaceous Marfim Formation of Brazil. The genus contains a single species, ''T. derbyiana'', known from a single incomplete femur. ''Tietasaura'' is notable for being the first ornithischian dinosaur ever named from Brazil. Discovery and naming The ''Tietasaura'' holotype specimen, NHM-PV R.3424, was discovered in 1906 during a series of expeditions by London's Natural History Museum to South America, lasting from 1859 to 1906. Some of the fossils found during these trips were described in publications in 1860 and 1907. This particular fieldwork was conducted along a beach near the Bahia-São Francisco Railway in the city of Salvador in Bahia, Brazil. This locality belongs to the Marfim Formation of the Recôncavo Basin. The specimen, which consists of the distal end of left femur, is among the first dinosaur remains found in South America. While it is now confident ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notohypsilophodon
''Notohypsilophodon'' (meaning "southern ''Hypsilophodon''") is a genus of ornithopod dinosaur from the Late Cretaceous of Argentina. It was described as the only "hypsilophodont" known from South America, although this assessment is not universally supported, and ''Gasparinisaura'' is now believed to have been a basal euornithopod as well. History of discovery From 1985 onwards the ''Laboratorio de Paleovertebrados'' of the Universidad Nacional de la Patagonia "San Juan Bosco" organised excavations in the late Cenomanian- early Turonian-age Bajo Barreal Formation of the San Jorge Basin, northern Chubut, Patagonia. At Buen Pasto near Comodoro Rivadavia a partial juvenile skeleton lacking the skull, was found. In 1998 this find was named and described by Rubén D. Martínez as the type species ''Notohypsilophodon comodorensis''. The generic name combines a Greek νότος, ''notos'', "south wind" with the name of the genus ''Hypsilophodon''. The specific name refers to Comod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasparinisaura
''Gasparinisaura'' (meaning "Gasparini's lizard") is a genus of herbivorous ornithopod dinosaur from the Late Cretaceous. The first fossils of ''Gasparinisaura'' were found in 1992 near Cinco Saltos in Río Negro Province, Argentina. The type species, ''Gasparinisaura cincosaltensis'', was named and described in 1996 by Rodolfo Coria and Leonardo Salgado. The generic name honors Argentine palaeontologist Zulma Brandoni de Gasparini. The specific name (zoology), specific name refers to Cinco Saltos.Coria, R. A., and L. Salgado. (1996). "A basal iguanodontian (Ornithischia: Ornithopoda) from the Late Cretaceous of South America". ''Journal of Vertebrate Paleontology'' 16: 445–457 Discovery The holotype, MUCPv-208, was uncovered in 1992 in a layer of the Anacleto Formation, dating from the early Campanian, about 83 million years old. It consists of a partial skeleton with skull, lacking much of the vertebral column. The paratype is MUCPv-212, a tail with lower hindlimb elements. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anabisetia
''Anabisetia'' ( ) is a genus of ornithopod dinosaur from the Late Cretaceous Period of Patagonia, South America. It was a small bipedal herbivore, around long. Discovery Argentine paleontologists Rodolfo Coria and Jorge Orlando Calvo named ''Anabisetia'' in 2002. The generic name honors the late Ana Maria Biset, an influential archeologist from Neuquén Province in Argentina, where the remains of this animal were found. The one named species is called ''A. saldiviai'', after Roberto Saldivia Blanco, a local farmer who had discovered the fossils in 1985 and brought them to the attention of science in 1993.Coria, R.A. & Calvo, J.O. 2002. A new iguanodontian ornithopod from Neuquen Basin, Patagonia, Argentina. ''Journal of Vertebrate Paleontology''. 22(3): 503–509 The finds had already been reported in the scientific literature in 1996. There are four specimens known, all listed in the original 2002 description. The holotype, MCF-PVPH 74, is the most complete of the four. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morrosaurus
''Morrosaurus'' is an extinct genus of herbivorous elasmarian dinosaur that lived in the late Cretaceous in Antarctica. The only known species is the type ''Morrosaurus antarcticus''. Discovery In 2002, the Argentine paleontologist Fernando Novas reported the discovery of a partial skeleton of a euornithopod in Antarctica. In 2016 these remains were the basis for naming the type species ''Morrosaurus antarcticus'', named and described by Sebastian Rozadilla, Federico Lisandro Agnolin, Fernando Emilio Novas, Alexis Rolando Aranciaga Mauro, Matthew J. Motta, Juan Manuel Lirio Marcelo, and Pablo Isasi. The genus name refers to the site of El Morro on James Ross Island, where the remains of the species were found. The specific name refers to Antarctica. The holotype specimen MACN Pv 197, was found in a layer of the Snow Hill Island Formation (Cape Lambe, previously assigned to the Lopez de Bertodano Formation), dating to the Maastrichtian age. The remains consists in a right hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qantassaurus
''Qantassaurus'' ( ) is a genus of basal (phylogenetics), basal two-legged, plant-eating elasmarian ornithischian dinosaur that lived in Australia about 125-112 million years ago, when the continent was still partly south of the Antarctic Circle. It was described by Patricia Vickers-Rich and her husband Tom Rich in 1999 after a find near Inverloch, Victoria, Inverloch, and named after Qantas, the Australian airline."The Hypsilophodontidae from southeastern Australia", by Tom H. Rich, and Patricia Vickers-Rich. October, 1999. In ''Proceedings of the Second Gondwana Dinosaur Symposium'', edited by Y. Tomada, Tom H. Rich. and Patricia Vickers-Rich. National Science Museum Monographs, number 15, pages 167 to 180. (the technical paper naming the species) Description ''Qantassaurus'' was probably about 1.8 meters (6 feet) long, and about one meter (3 feet) high. If it resembled its relatives, it had short thighs and long shins, and probably was a fast runner. Its feet had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
