Shuvosaurus (meaning "Shuvo's lizard") is a genus of beaked reptile from the Late Triassic of western Texas. Despite looking superficially similar to a theropod dinosaur, it is actually more closely related to crocodilians.The vertebrae of Gojirasaurus now are now known to belong to Shuvosaurus.
Shuvosaurus was described by Sankar Chatterjee in 1993 after it was discovered by his son Shuvo in the early 1990s.[1][2] It was initially interpreted as a Triassic member of the Cretaceous dinosaur family Ornithomimidae because it had toothless jaws. Like the avian placement of Protoavis, the ornithomimosaur placement of Shuvosaurus was greeted with scepticism by others, and in their 1995 monograph on Late Triassic tetrapods from the American Southwest, Robert Long and Philip Murry considered Shuvosaurus to be possibly the same species as their new taxon Chatterjeea, which was based on 10 postcranial skeletons that had been previously referred to the rauisuchid Postosuchus by Chatterjee (1985), noting that the Shuvosaurus and the Chatterjeea material didn't overlap in terms of available material.[3] For his part, Rauhut (1997, 2000, 2003) agreed with Long and Murry (1995) in questioning the ornithomimosaur placement of Shuvosaurus but classified it as a basal theropod.[4][5][6]
In the early 2000s, Sterling Nesbitt and Mark Norell prepared previously unopened jackets of an archosaur from the Whitaker Quarry at Ghost Ranch, which they named Effigia in 2006. This discovery showed that Shuvosaurus is more closely related to crocodilians, and that similarities between this animal and ornithomimids result from convergent evolution, while demonstrated that the taxon Chatterjeea was synonymous with Shuvosaurus.[7][8]
Shuvosaurus in a cladogram after Butler et al., 2011:[9]
^Chatterjee, S. (1991) An unusual toothless archosaur from the Triassic of Texas: the world's oldest ostrich dinosaur? Abstract, Journal of Vertebrate Paleontology, 8(3): 11A.
^Chatterjee, S. (1993). "Shuvosaurus, a new theropod: an unusual theropod dinosaur from the Triassic of Texas". National Geographic Research and Exploration. 9 (3): 274–285.
^Long and Murry, 1995. Late Triassic (Carnian and Norian) tetrapods from the Southwestern United States. Bulletin of the New Mexico Museum of Natural History and Science. 4, 1-254.
^Rauhut, O. W. M. (1997). "On the cranial anatomy of Shuvosaurus inexpectatus (Dinosauria: Theropoda)." In: Sachs, S., Rauhut, O. W. M. & Weigert, A. (eds) 1. Treffen der deutschsprachigen Palaeoherpetologen, Düsseldorf, 21.-23.02.1997; Extended Abstracts. Terra Nostra 7/97, pp. 17-21.
^Rauhut, 2000. The interrelationships and evolution of basal theropods (Dinosauria, Saurischia). PhD thesis, University of Bristol. 440 pp.
^Rauhut, 2003. The interrelationships and evolution of basal theropod dinosaurs. Special Papers in Palaeontology. 69, 96 pp.
^Nesbitt, Sterling J.; Norell, Mark A. (2006). "Extreme convergence in the body plans of an early suchian (Archosauria) and ornithomimid dinosaurs (Theropoda)". Proceedings of the Royal Society B: Biological Sciences. 273 (1590): 1045–1048. doi:10.1098/rspb.2005.3426. PMC1560254. PMID 16600879.
^Nesbitt, S. (2007). "The anatomy of Effigia okeeffeae (Archosauria, Suchia), theropod-like convergence, and the distribution of related taxa." Bulletin of the American Museum of Natural History, 302: 84 pp.
^Butler, R.J.; Brusatte, S.J.; Reich, M.; Nesbitt, S.J.; Schoch, R.R.; Hornung, J.J. (2011). Andrew A. Farke (ed.). "The Sail-Backed Reptile Ctenosauriscus from the Latest Early Triassic of Germany and the Timing and Biogeography of the Early Archosaur Radiation". PLOS ONE. 6 (10): e25693. Bibcode:2011PLoSO...625693B. doi:10.1371/journal.pone.0025693. PMC3194824. PMID 22022431.
shuvosaurus, confused, with, shunosaurus, meaning, shuvo, lizard, genus, beaked, reptile, from, late, triassic, western, texas, despite, looking, superficially, similar, theropod, dinosaur, actually, more, closely, related, crocodilians, vertebrae, gojirasauru. Not to be confused with Shunosaurus Shuvosaurus meaning Shuvo s lizard is a genus of beaked reptile from the Late Triassic of western Texas Despite looking superficially similar to a theropod dinosaur it is actually more closely related to crocodilians The vertebrae of Gojirasaurus now are now known to belong to Shuvosaurus ShuvosaurusTemporal range Late Triassic Norian to Rhaetian 221 5 205 6 Ma PreꞒ Ꞓ O S D C P T J K Pg NRestorationScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ReptiliaClade ArchosauriaClade PseudosuchiaClade ParacrocodylomorphaSuperfamily PoposauroideaFamily ShuvosauridaeGenus ShuvosaurusSpecies S inexpectatusBinomial name Shuvosaurus inexpectatusChatterjee 1993SynonymsChatterjeea Long amp Murry 1995 Chatterjeea elegans Long amp Murry 1995Discovery and classification edit nbsp Restored headShuvosaurus was described by Sankar Chatterjee in 1993 after it was discovered by his son Shuvo in the early 1990s 1 2 It was initially interpreted as a Triassic member of the Cretaceous dinosaur family Ornithomimidae because it had toothless jaws Like the avian placement of Protoavis the ornithomimosaur placement of Shuvosaurus was greeted with scepticism by others and in their 1995 monograph on Late Triassic tetrapods from the American Southwest Robert Long and Philip Murry considered Shuvosaurus to be possibly the same species as their new taxon Chatterjeea which was based on 10 postcranial skeletons that had been previously referred to the rauisuchid Postosuchus by Chatterjee 1985 noting that the Shuvosaurus and the Chatterjeea material didn t overlap in terms of available material 3 For his part Rauhut 1997 2000 2003 agreed with Long and Murry 1995 in questioning the ornithomimosaur placement of Shuvosaurus but classified it as a basal theropod 4 5 6 In the early 2000s Sterling Nesbitt and Mark Norell prepared previously unopened jackets of an archosaur from the Whitaker Quarry at Ghost Ranch which they named Effigia in 2006 This discovery showed that Shuvosaurus is more closely related to crocodilians and that similarities between this animal and ornithomimids result from convergent evolution while demonstrated that the taxon Chatterjeea was synonymous with Shuvosaurus 7 8 Shuvosaurus in a cladogram after Butler et al 2011 9 Poposauroidea QianosuchusCtenosauriscidae ArizonasaurusXilousuchusHypselorhachisCtenosauriscusBromsgroveiaWaldhaus TaxonPoposaurus gracilis HPoposaurus gracilis YLotosaurusSillosuchusShuvosaurusEffigiaReferences edit nbsp Paleontology portal Chatterjee S 1991 An unusual toothless archosaur from the Triassic of Texas the world s oldest ostrich dinosaur Abstract Journal of Vertebrate Paleontology 8 3 11A Chatterjee S 1993 Shuvosaurus a new theropod an unusual theropod dinosaur from the Triassic of Texas National Geographic Research and Exploration 9 3 274 285 Long and Murry 1995 Late Triassic Carnian and Norian tetrapods from the Southwestern United States Bulletin of the New Mexico Museum of Natural History and Science 4 1 254 Rauhut O W M 1997 On the cranial anatomy of Shuvosaurus inexpectatus Dinosauria Theropoda In Sachs S Rauhut O W M amp Weigert A eds 1 Treffen der deutschsprachigen Palaeoherpetologen Dusseldorf 21 23 02 1997 Extended Abstracts Terra Nostra 7 97 pp 17 21 Rauhut 2000 The interrelationships and evolution of basal theropods Dinosauria Saurischia PhD thesis University of Bristol 440 pp Rauhut 2003 The interrelationships and evolution of basal theropod dinosaurs Special Papers in Palaeontology 69 96 pp Nesbitt Sterling J Norell Mark A 2006 Extreme convergence in the body plans of an early suchian Archosauria and ornithomimid dinosaurs Theropoda Proceedings of the Royal Society B Biological Sciences 273 1590 1045 1048 doi 10 1098 rspb 2005 3426 PMC 1560254 PMID 16600879 Nesbitt S 2007 The anatomy of Effigia okeeffeae Archosauria Suchia theropod like convergence and the distribution of related taxa Bulletin of the American Museum of Natural History 302 84 pp Butler R J Brusatte S J Reich M Nesbitt S J Schoch R R Hornung J J 2011 Andrew A Farke ed The Sail Backed Reptile Ctenosauriscus from the Latest Early Triassic of Germany and the Timing and Biogeography of the Early Archosaur Radiation PLOS ONE 6 10 e25693 Bibcode 2011PLoSO 625693B doi 10 1371 journal pone 0025693 PMC 3194824 PMID 22022431 nbsp This article about a prehistoric archosaur is a stub You can help Wikipedia by expanding it vte nbsp This article about a Triassic reptile is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Shuvosaurus amp oldid 1210753595, wikipedia, wiki, book, books, library,
