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Psilotrachelosaurus

Reptilia - Eosauropterygia - Pachypleurosauridae

Taxonomy
Psilotrachelosaurus was named by Seeley (1882) [Sepkoski's age data: Tr Ladi-l Tr Carn-l Sepkoski's age data: Tr m Sepkoski's reference number: 746].

It was assigned to Lariosauridae by Lydekker (1889); to Neusticosauridae by Seeley (1892); to Pachypleuridae by Carroll (1988); to Pachycephalosauridae by Rieppel and Lin (1995); to Pachypleurosauridae by Kuhn (1971), Sander (1989), Rieppel (1993), Rieppel (1995) and Rieppel (2000); and to Notosauria by Sepkoski (2002).

Species

Synonymy list
YearName and author
1882Psilotrachelosaurus Seeley
1889Psilotrachelosaurus Lydekker p. 285
1892Psilotrachelosaurus Seeley pp. 603- 604
1971Psilotrachelosaurus Kuhn p. 17
1988Psilotrachelosaurus Carroll
1989Psilotrachelosaurus Sander
1993Psilotrachelosaurus Rieppel p. 4
1995Psilotrachelosaurus Rieppel p. 213
1995Psilotrachelosaurus Rieppel and Lin p. 35 figs. Figure 27
2000Psilotrachelosaurus Rieppel
2002Psilotrachelosaurus Sepkoski

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
RankNameAuthor
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
suborderSauropterygia
orderEosauropterygia
superfamilyPachypleurosauroidea
familyPachypleurosauridae(Nopcsa 1928)
genusPsilotrachelosaurus

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.

G. †Psilotrachelosaurus Seeley 1882
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Diagnosis
ReferenceDiagnosis
O. Rieppel 1993A small-sized pachypleu-
rosaur sharing with the Serpianosaurus-Neusti- cosaurus clade the surface ornamentation on the
humerus but differing by the relatively short hu- merus, a more fully ossified carpus and tarsus (distal carpal/tarsal 4 present), and relatively broad ventral elements in the pelvic girdle.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubo
Locomotion: actively mobilec
Created: 2017-04-17 10:38:36
Modified: 2017-04-17 10:38:36
Source: subo = suborder, c = class, subp = subphylum
References: Bush and Bambach 2015, Hendy et al. 2009, Carroll 1988

Age range: Longobardian or 242.00000 to 235.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Longobardian242.0 - 235.0Austria (Karnten) P. toeplitschi (195572)