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Gerontoseps irvinensis

Reptilia - Teiidae

Taxonomy
Gerontoseps irvinensis was named by Gao and Fox (1991). Its type specimen is UALVP 29754, a mandible (anterior part of a right mandible having three complete and ten broken teeth), and it is a 3D body fossil. Its type locality is Irvine microvertebrate site, which is in a Judithian terrestrial horizon in the Dinosaur Park Formation of Canada.

Synonymy list
YearName and author
1991Gerontoseps irvinensis Gao and Fox
1996Gerontoseps irvinensis Gao and Fox p. 33
2001Gerontoseps irvinensis Peng et al. p. 28

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
RankNameAuthor
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Squamata()
—Episquamata
superfamilyLacertoideaCamp 1923
—Teiioidea
familyTeiidaeGray 1827
genusGerontoseps
speciesirvinensis

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.

†Gerontoseps irvinensis Gao and Fox 1991
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Diagnosis
ReferenceDiagnosis
K. -Q. Gao and R. C. Fox 1991A small species differing from other Late Cretaceous and recent teiids in having the following combination of characters: dentary shallow but wide, convex both laterally and medially; splenial fused to dentary; sulcus dentalis narrow and conspicuously deep; teeth unicuspid and nearly conical, but having symmetrical anterior and posterior ridges; tooth attachment subpelurodont, with lateral parapet about one-third of crown height.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: insectivoref
Diet 2: carnivoref
Created: 2005-09-05 19:44:41
Modified: 2005-09-05 21:44:41
Source: f = family, c = class, subp = subphylum, uc = unranked clade
References: Behler and King 1979, Hendy et al. 2009, Carroll 1988

Age range: Late/Upper Campanian or 83.60000 to 72.20000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Judithian83.6 - 72.2Canada (Alberta) Gerontoseps irvinensis (type locality: 14463)
Late/Upper Campanian83.6 - 72.2Canada (Alberta) Gerontoseps irvinensis (45671)