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Pamizinsaurus tlayuanensis

Reptilia

Taxonomy
Pamizinsaurus tlayuanensis was named by Reynoso (1997). Its type specimen is IGM 6854, a partial skeleton (Severaly crushed skeleton of a juvenile), and it is a 3D body fossil. Its type locality is Site IGM-2432, Tlayúa Quarry, which is in an Albian/Albian lagoonal/restricted shallow subtidal lime mudstone in the Tlayúa Formation of Mexico. It is the type species of Pamizinsaurus.

Synonymy list
YearName and author
1997Pamizinsaurus tlayuanensis Reynoso
2014Pamizinsaurus tlayuanensis Reynoso and Cruz p. 51

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
RankNameAuthor
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Eosuchia()
—Neodiapsida
—SauriaGauthier 1984
—Lepidosauromorpha(Benton 1983)
superorderLepidosauria()
—Sphenodontia()
infraorderEusphenodontia
—Neosphenodontia
genusPamizinsaurus
speciestlayuanensis

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.

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Diagnosis
ReferenceDiagnosis
V. H. Reynoso 1997Sphenodontian with small rounded osteoscutes aligned in transversely oriented rows; relatively few hatchling teeth with well-developed ridges, symphysial end of the dentary tapered anterodorsally with the ventral process of the symphysis displaced posteriorly in early ontogeny, small posteromedial processes of the pterygoids close to the midline almost closing the interpterygoid vacuity, short tail covered with osteoderms arranged in rings
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Created: 2017-04-17 15:16:03
Modified: 2017-04-17 15:16:03
Source: subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988

Age range: base of the Middle Albian to the top of the Late/Upper Albian or 109.00000 to 99.60000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Middle Albian - Late/Upper Albian109.0 - 99.6Mexico (Puebla) Pamizinsaurus tlayuanensis (type locality: 133991)