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Plastomenus thomasii

Reptilia - Testudines

Taxonomy
Trionyx thomasii was named by Cope (1872) [AMNH 6018 is the designated neotype by Joyce and Lyson 2010]. Its type specimen is AMNH 6018, a partial shell, and it is a 3D body fossil. Its type locality is Cottonwood Creek badlands (Bridger B), which is in a Bridgerian terrestrial horizon in Wyoming.

It was recombined as Plastomenus thomasi by Hay (1908); it was considered a nomen dubium by Joyce and Lyson (2010); it was recombined as Plastomenus thomasii by Cope (1873), Cope (1875), Hay (1902), Hay (1930), Vitek and Joyce (2015) and Lyson et al. (2021).

Synonyms
Synonymy list
YearName and author
1872Trionyx thomasii Cope p. 462
1873Plastomenus thomasii Cope
1875Plastomenus thomasii Cope p. 35
1902Plastomenus thomasii Hay p. 452
1908Plastomenus thomasi Hay p. 474 figs. Text-figs. 633-637
1908Plastomenus visendus Hay p. 476 figs. Plate 87, figs. 1, 2; text-figs, 636, 637
1908Plastomenus tantillus Hay p. 478 figs. Figs. 638, 639
1930Plastomenus tantillus Hay p. 107
1930Plastomenus thomasii Hay p. 107
1930Plastomenus visendus Hay p. 107
2015Plastomenus thomasii Vitek and Joyce
2021Plastomenus thomasii Lyson et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
RankNameAuthor
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
suborderCryptodira
suborderTrionychia
—PantrionychidaeJoyce et al. 2004
—Plastomenidae()
—Plastomenini
genusPlastomenusCope 1873
speciesthomasii()

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.

†Plastomenus thomasii Cope 1872
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Invalid names: Plastomenus tantillus Hay 1908 [synonym], Plastomenus visendus Hay 1908 [synonym]
Diagnosis
No diagnoses are available