Angistorhinus (meaning "narrow snout" or "hook snout") is an extinctgenus of phytosaur known from the Late Triassicperiod of Texas and Wyoming, United States. It was first named by Mehl in 1913 and the type species is Angistorhinus grandis.[1] Other species from Texas and Wyoming, A. alticephalus (Stovall and Wharton, 1936), A. gracilis (Mehl, 1915) and A. maximus (Mehl, 1928), are cospecific with the type species.[2]Angistorhinus is known from the holotype UC 631, partial skull and lower jaws recovered from the Popo Agie Formation, Chugwater Group, Wyoming and from the associated paratype UM 531, a partial skull, TMM 31098-1, skull and lower jaws and ROM 7977, partial skull and lower jaws, recovered from the 'Pre-Tecovas Horizon' in the Dockum Group, Texas. A possible second species, A. talainti is known from the Triassic of Morocco.[3] In 1995, Long and Murry created the new combination, Angistorhinus megalodon by synonymy for Brachysuchus.[4] Hungerbühler and Sues (2001) hypothesised that Angistorhinus is a junior synonym of Rutiodon.[5] However, in 2010 Michelle R. Stocker retained the validity of Brachysuchus and of A. grandis.[6]
Angistorhinus was another of the early phytosaur genera. It was similar to Parasuchus but differed in having the nostrils located further back, towards and above the eyes. This was a more specialized condition that characterized all late phytosaurs. Angisthorhinus was a huge animal by any standards; the skull length was about 120–124 cm; estimated overall length 7 to 8 meters, more in A. megalodon, a very large, short and heavy-muzzled form sometimes given its own genus (Brachysuchus), and which far exceeded in size any living crocodile.[7]
Referencesedit
Wikimedia Commons has media related to Angistorhinus.
^Mehl, M. G. (1913). "Angistorhinus, a new genus of Phytosauria from the Trias of Wyoming". Journal of Geology. 21 (2): 186–191. Bibcode:1913JG.....21..186M. doi:10.1086/622049. S2CID 129008996.
^S. G. Lucas; A. B. Heckert & R. Kahle (2002). A. B. Heckert & S. G. Lucas (eds.). "Postcranial anatomy of Angistorhinus, a Late Triassic phytosaur from West Texas". Upper Triassic Stratigraphy and Paleontology, New Mexico Museum of Natural History and Science Bulletin. 21: 157–164.
^Dutuit, J.-M. (1977). "Description du craˆne de Angistorhinus talainti n. sp. un nouveau Phytosaure du Trais atlasique marocain". Bulletin du Muséum National d'Histoire Naturelle. 3 (489): 297–336.
^Long, R. A. & Murry, P. A. (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.
^Hungerbühler, A. & Sues, H.-D. (2001). "Status and phylogenetic relationships of the Late Triassic phytosaur Rutiodon carolinensis". Journal of Vertebrate Paleontology. 21 (3 Suppl): 64A. doi:10.1080/02724634.2001.10010852. S2CID 220414868.
^Michelle R. Stocker (2010). "A new taxon of phytosaur (Archosauria: Pseudosuchia) from the Late Triassic (Norian) Sonsela Member (Chinle Formation) in Arizona, and a critical reevaluation of Leptosuchus Case, 1922". Palaeontology. 53 (5): 997–1022. doi:10.1111/j.1475-4983.2010.00983.x. S2CID 83536253.
^. Archived from the original on 2013-12-24. Retrieved 2012-05-25.
angistorhinus, meaning, narrow, snout, hook, snout, extinct, genus, phytosaur, known, from, late, triassic, period, texas, wyoming, united, states, first, named, mehl, 1913, type, species, grandis, other, species, from, texas, wyoming, alticephalus, stovall, w. Angistorhinus meaning narrow snout or hook snout is an extinct genus of phytosaur known from the Late Triassic period of Texas and Wyoming United States It was first named by Mehl in 1913 and the type species is Angistorhinus grandis 1 Other species from Texas and Wyoming A alticephalus Stovall and Wharton 1936 A gracilis Mehl 1915 and A maximus Mehl 1928 are cospecific with the type species 2 Angistorhinus is known from the holotype UC 631 partial skull and lower jaws recovered from the Popo Agie Formation Chugwater Group Wyoming and from the associated paratype UM 531 a partial skull TMM 31098 1 skull and lower jaws and ROM 7977 partial skull and lower jaws recovered from the Pre Tecovas Horizon in the Dockum Group Texas A possible second species A talainti is known from the Triassic of Morocco 3 In 1995 Long and Murry created the new combination Angistorhinus megalodon by synonymy for Brachysuchus 4 Hungerbuhler and Sues 2001 hypothesised that Angistorhinus is a junior synonym of Rutiodon 5 However in 2010 Michelle R Stocker retained the validity of Brachysuchus and of A grandis 6 AngistorhinusTemporal range 237 208 5 Ma PreꞒ Ꞓ O S D C P T J K Pg NAngistorhinus skullScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ReptiliaClade ArchosauromorphaClade ArchosauriformesOrder PhytosauriaFamily ParasuchidaeGenus AngistorhinusMehl 1913Species A grandis Mehl 1913 type A talainti Dutuit 1977Life restoration of Angistorhinus grandisDescription editAngistorhinus was another of the early phytosaur genera It was similar to Parasuchus but differed in having the nostrils located further back towards and above the eyes This was a more specialized condition that characterized all late phytosaurs Angisthorhinus was a huge animal by any standards the skull length was about 120 124 cm estimated overall length 7 to 8 meters more in A megalodon a very large short and heavy muzzled form sometimes given its own genus Brachysuchus and which far exceeded in size any living crocodile 7 References edit nbsp Wikimedia Commons has media related to Angistorhinus Mehl M G 1913 Angistorhinus a new genus of Phytosauria from the Trias of Wyoming Journal of Geology 21 2 186 191 Bibcode 1913JG 21 186M doi 10 1086 622049 S2CID 129008996 S G Lucas A B Heckert amp R Kahle 2002 A B Heckert amp S G Lucas eds Postcranial anatomy of Angistorhinus a Late Triassic phytosaur from West Texas Upper Triassic Stratigraphy and Paleontology New Mexico Museum of Natural History and Science Bulletin 21 157 164 Dutuit J M 1977 Description du craˆne de Angistorhinus talainti n sp un nouveau Phytosaure du Trais atlasique marocain Bulletin du Museum National d Histoire Naturelle 3 489 297 336 Long R A amp Murry P A 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 Hungerbuhler A amp Sues H D 2001 Status and phylogenetic relationships of the Late Triassic phytosaur Rutiodon carolinensis Journal of Vertebrate Paleontology 21 3 Suppl 64A doi 10 1080 02724634 2001 10010852 S2CID 220414868 Michelle R Stocker 2010 A new taxon of phytosaur Archosauria Pseudosuchia from the Late Triassic Norian Sonsela Member Chinle Formation in Arizona and a critical reevaluation of Leptosuchus Case 1922 Palaeontology 53 5 997 1022 doi 10 1111 j 1475 4983 2010 00983 x S2CID 83536253 Palaeos Mesozoic Triassic Late Triassic Carnian 2 Archived from the original on 2013 12 24 Retrieved 2012 05 25 nbsp Paleontology portal Retrieved from https en wikipedia org w index php title Angistorhinus amp oldid 1192665531, wikipedia, wiki, book, books, library,
