PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Trilophosaurus buettneri

Reptilia

Taxonomy

Trilophosaurus buettneri was named by Case (1928). Its type specimen is UMMP 2338, a mandible, and it is a 3D body fossil. Its type locality is Walker's Tank, TMM 41966, which is in a Norian terrestrial horizon in the Tecovas Formation of Texas.

Synonyms

Malerisaurus langstoni was named by Chatterjee (1986) [Spielmann et al. 2006 restricted the holotype to the skull fragments only]. Its type specimen is TMM 31099-11, a partial skull (Skull fragments), and it is a 3D body fossil. Its type locality is Otis Chalk Quarry 2, TMM 31099 (Dockum Formation), which is in a Carnian/Norian crevasse splay mudstone/sandstone in the Colorado City Formation of Texas.

It was synonymized subjectively with Trilophosaurus buettneri by Spielmann et al. (2006).

Synonymy list

Year	Name and author
1928	Trilophosaurus buettneri Case
1930	Trilophosaurus buettneri Hay p. 36
1986	Malerisaurus langstoni Chatterjee p. 298 figs. 2-8
1989	Trilophosaurus buettneri Murry p. 274
2005	Trilophosaurus buettneri Irmis p. 70
2006	Trilophosaurus buettneri Heckert et al.
2007	Trilophosaurus buettneri Spielmann et al.
2008	Trilophosaurus buettneri Spielmann et al. p. 11
2016	Trilophosaurus buettneri Ezcurra

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria

Rank	Name	Author
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Allokotosauria
genus	Trilophosaurus
species	buettneri

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Trilophosaurus buettneri Case 1928

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Invalid names: Malerisaurus langstoni Chatterjee 1986 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialsubc

Locomotion:

actively mobilec

Diet:

herbivoreg

Created:

2009-01-03 21:10:37

Modified:

2009-01-03 23:10:37

Source: g = genus, subc = subclass, c = class, subp = subphylum

References: Hendy et al. 2009, Benton 1983, Carroll 1988

Age range: base of the Carnian to the top of the Norian or 237.00000 to 205.70000 Ma

Collections (12 total)

Time interval	Ma	Country or state	Original ID and collection number
Carnian	237.0 - 227.3	USA (Texas)	Trilophosaurus sp. (84271)
Carnian - Norian	237.0 - 205.7	USA (Texas)	Malerisaurus langstoni (22704) Trilophosaurus buettneri, Malerisaurus langstoni, Trilophosaurus sp. (12942) Trilophosaurus sp. (22706 22707)
Norian	227.3 - 205.7	USA (Arizona)	Trilophosaurus buettneri (48547)
Norian	227.3 - 205.7	USA (Texas)	Protorosauria indet. (13273) Trilophosaurus buettneri (84269 type locality: 94493 218126) Trilophosaurus crosbyensis (48424) Trilophosaurus sp. (13266)