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Stenoplacosaurus mongoliensis

Reptilia - Anguidae

Taxonomy
Helodermoides mongoliensis was named by Sullivan (1979). Its type specimen is AMNH 6669 (left frontal) and is a 3D body fossil. Its type locality is Near Baron Sog, which is in an Eocene terrestrial horizon in the Shara Murum Formation of China. It is the type species of Stenoplacosaurus.

It was recombined as Placosaurus mongoliensis by Sullivan (1979), Estes (1983) and Sullivan and Augé (2006); it was recombined as Stenoplacosaurus mongoliensis by Sullivan and Dong (2018).

Synonymy list
YearName and author
1979Placosaurus mongoliensis Sullivan
1979Helodermoides mongoliensis Sullivan p. 40 figs. 19a-b
1983Placosaurus mongoliensis Estes
2006Placosaurus mongoliensis Sullivan and Augé
2018Stenoplacosaurus mongoliensis Sullivan and Dong

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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
—Squamata()
—Anguimorpha(Fürbringer 1900)
—Anguiformes(Bonaparte 1831)
superfamilyAnguioideaFitzinger 1826
familyAnguidaeGray 1825
subfamilyGlyptosaurinaeMarsh 1872
tribeGlyptosaurini
genusStenoplacosaurus
speciesmongoliensis()

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
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubf
Locomotion: actively mobilec
Life habit: ground dwellingsubf
Diet: insectivoref
Diet 2: carnivoref
Created: 2005-09-23 14:40:23
Modified: 2005-09-23 16:40:23
Source: subf = subfamily, f = family, c = class, subp = subphylum
References: Hendy et al. 2009, Behler and King 1979, Head 2005, Carroll 1988

Age range: Middle Eocene or 47.80000 to 37.71000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Sharamurunian56.0 - 37.71China (Henan) Placosaurus rugosus (42164)
Middle Eocene47.8 - 37.71China (Nei Mongol) Glyptosaurus nodosus (type locality: 174748)