Although originally classified as a trilophosaur, Tricuspisaurus was reclassified as a procolophonid in 1993 by paleontologists Hans-Dieter Sues and Paul E. Olsen.[2] This was due to similarities between its tricuspid teeth and those of the newly described procolophonid Xenodiphyodon. Along with Tricuspisaurus, Variodens and Trilophosaurus jacobsi were also considered to be procolophonids.[3] More recently described cranial material from T. jacobsi indicates that it is still likely to be a trilophosaur.[4][5]
Referencesedit
^ abRobinson, P.L. (1957). "An unusual sauropsid dentition". Zoological Journal of the Linnean Society. 43 (291): 283–293. doi:10.1111/j.1096-3642.1957.tb01554.x.
^ abSues, H.-D.; Olsen, P.E. (1993). "A new procolophonid and a new tetrapod of uncertain, possibly procolophonian affinities from the Upper Triassic of Virginia". Journal of Vertebrate Paleontology. 13 (3): 282–286. Bibcode:1993JVPal..13..282S. doi:10.1080/02724634.1993.10011510.
^ abFraser, N.C. (1994). "Assemblages of small tetrapods from British Late Triassic fissure deposits". In Fraser, N.C.; Sues, H.-D. (eds.). In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods. Cambridge and New York: Cambridge University Press. pp. 214–225. ISBN9780521458993.
^ abHeckert, A.B.; Lucas, S.G.; Rinehart, L.F.; Spielmann, J.A.; Hunt, A.P.; Kahle, R. (2006). "Revision of the archosauromorph reptile Trilophosaurus, with a description of the first skull of Trilophosaurus jacobsi, from the Upper Triassic Chinle Group, West Texas, USA" (PDF). Palaeontology. 49 (3): 621–640. Bibcode:2006Palgy..49..621H. doi:10.1111/j.1475-4983.2006.00556.x.
^ abSkinner, Matthew; Whiteside, David I.; Benton, Michael J. (2020). "Late Triassic island dwarfs? Terrestrial tetrapods of the Ruthin fissure (South Wales, UK) including a new genus of procolophonid". Proceedings of the Geologists' Association. 131 (5): 535–561. Bibcode:2020PrGA..131..535S. doi:10.1016/j.pgeola.2020.04.005. S2CID 221878712.
tricuspisaurus, extinct, genus, reptile, originally, described, trilophosaurid, later, considered, likely, procolophonid, recent, analyses, have, affirmed, original, classification, fossils, known, from, ruthin, quarry, glamorgan, wales, several, late, triassi. Tricuspisaurus is an extinct genus of reptile originally described as a trilophosaurid 1 it was later considered likely to be a procolophonid 2 3 4 but recent analyses have affirmed the original classification 5 Fossils are known from the Ruthin Quarry in Glamorgan Wales one of several Late Triassic to Early Jurassic British fissure deposits Like some trilophosaurs it has an edentulous or toothless beak Tricuspisaurus gets its name from its heterodont dentition which includes tricuspid teeth or teeth with three cusps The type species T thomasi was named in 1957 along with the possible trilophosaur Variodens inopinatus from Somerset England 1 TricuspisaurusTemporal range Late Triassic 205 6 201 6 Ma PreꞒ Ꞓ O S D C P T J K Pg N Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ReptiliaClade ArchosauromorphaClade AllokotosauriaOrder TrilophosauriaFamily TrilophosauridaeGenus TricuspisaurusRobinson 1957Type species Tricuspisaurus thomasiRobinson 1957Although originally classified as a trilophosaur Tricuspisaurus was reclassified as a procolophonid in 1993 by paleontologists Hans Dieter Sues and Paul E Olsen 2 This was due to similarities between its tricuspid teeth and those of the newly described procolophonid Xenodiphyodon Along with Tricuspisaurus Variodens and Trilophosaurus jacobsi were also considered to be procolophonids 3 More recently described cranial material from T jacobsi indicates that it is still likely to be a trilophosaur 4 5 References edit a b Robinson P L 1957 An unusual sauropsid dentition Zoological Journal of the Linnean Society 43 291 283 293 doi 10 1111 j 1096 3642 1957 tb01554 x a b Sues H D Olsen P E 1993 A new procolophonid and a new tetrapod of uncertain possibly procolophonian affinities from the Upper Triassic of Virginia Journal of Vertebrate Paleontology 13 3 282 286 Bibcode 1993JVPal 13 282S doi 10 1080 02724634 1993 10011510 a b Fraser N C 1994 Assemblages of small tetrapods from British Late Triassic fissure deposits In Fraser N C Sues H D eds In the Shadow of the Dinosaurs Early Mesozoic Tetrapods Cambridge and New York Cambridge University Press pp 214 225 ISBN 9780521458993 a b Heckert A B Lucas S G Rinehart L F Spielmann J A Hunt A P Kahle R 2006 Revision of the archosauromorph reptile Trilophosaurus with a description of the first skull of Trilophosaurus jacobsi from the Upper Triassic Chinle Group West Texas USA PDF Palaeontology 49 3 621 640 Bibcode 2006Palgy 49 621H doi 10 1111 j 1475 4983 2006 00556 x a b Skinner Matthew Whiteside David I Benton Michael J 2020 Late Triassic island dwarfs Terrestrial tetrapods of the Ruthin fissure South Wales UK including a new genus of procolophonid Proceedings of the Geologists Association 131 5 535 561 Bibcode 2020PrGA 131 535S doi 10 1016 j pgeola 2020 04 005 S2CID 221878712 nbsp Paleontology portal 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 Tricuspisaurus amp oldid 1195010350, wikipedia, wiki, book, books, library,
