Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Geochelone (Hesperotestudo) angusticeps

Reptilia - Testudines - Testudinidae

Discussion

named as a new subspecies at first

Taxonomy
Testudo angusticeps was named by Matthew (1924). Its type specimen is AMNH 6295, a skull, and it is a 3D body fossil. Its type locality is Thomson Quarry, which is in a Hemingfordian terrestrial horizon in the Sheep Creek Formation of Nebraska.

It was recombined as Testudo (Hesperotestudo) angusticeps by Williams (1953) and Milstead (1956); it was recombined as Geochelone (Hesperotestudo) angusticeps by Auffenberg (1963).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1920Testudo angusticeps Osborn
1924Testudo angusticeps Matthew
1953Testudo (Hesperotestudo) angusticeps Williams p. 548
1956Testudo (Hesperotestudo) angusticeps Milstead p. 170
1963Geochelone (Hesperotestudo) angusticeps Auffenberg p. 89

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
RankNameAuthor
Cotylosauria()
Amniota
Sauropsida
classReptilia
Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
suborderCryptodira
Pantestudinoidea
superfamilyTestudinoidea
familyTestudinidaeBatsch 1788
subfamilyXerobatinaeAgassiz 1857
genusGeochelone(Williams 1950)
subgenusHesperotestudo
speciesangusticeps()

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.

show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialf
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: herbivoref
Diet 2: herbivoref
Reproduction: oviparousf
Created: 2005-08-26 07:16:55
Modified: 2005-09-09 16:16:46
Source: f = family, c = class, subp = subphylum
References: Carroll 1988, Hendy et al. 2009, Ernst and Barbour 1989

Age range: Hemingfordian or 20.43000 to 15.97000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Hemingfordian20.43 - 15.97USA (Nebraska) Testudo angusticeps (type locality: 18001)