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Echmatemys callopyge

Reptilia - Testudines - Geoemydidae

Taxonomy
Echmatemys callopyge was named by Hay (1908). Its type specimen is AMNH No. 2087, a shell, and it is a 3D body fossil. Its type locality is White River (Uinta B), which is in an Uintan terrestrial horizon in the Uinta Formation of Utah.

It was recombined as Echmatemys septaria callopyge by Roberts (1962).

Synonymy list
YearName and author
1908Echmatemys callopyge Hay
1915Echmatemys callopyge Gilmore p. 123
1930Echmatemys callopyge Hay p. 95
1962Echmatemys septaria callopyge Roberts p. 386
2018Echmatemys callopyge Vlachos
2020Echmatemys callopyge Vlachos p. 18

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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
—Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
suborderCryptodira
—Pantestudinoidea
superfamilyTestudinoidea
familyGeoemydidaeTheobald 1868
genusEchmatemys
speciescallopyge

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
E. Vlachos 2018Echmatemys callopyge can be diagnosed as a member of Echmatemys based on the characters mentioned for that clade above. Echmatemys callopyge differs from other Echmatemys by the following combination of characters: no contact between vertebral I and marginal II, pleural I laterally covering the nuchal, entoplastron covered by both gulars and pectorals, femorals medially much shorter than anal scutes, anterior and posterior lobes well-rounded, and a narrow and rounded anal notch.
Measurements
No measurements are available
Composition: phosphaticsubp
Entire body: yesg
Adult length: 100 to < 1000g
Environment: freshwaterg
Locomotion: actively mobilec
Life habit: aquaticg
Diet: herbivoreg
Reproduction: oviparoussubo
Created: 2006-04-19 14:59:48
Modified: 2006-04-19 17:05:43
Source: g = genus, subo = suborder, c = class, subp = subphylum
References: Holroyd et al. 2001, Carroll 1988, Uetz 2005, Hendy et al. 2009

Age range: base of the Bridgerian to the top of the Early/Lower Uintan or 50.30000 to 39.70000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Bridgerian50.3 - 46.2USA (Wyoming) Echmatemys callopyge (74504)
Early/Lower Uintan46.2 - 39.7USA (Utah) Echmatemys callopyge (186888)
Late/Upper Uintan46.2 - 39.7USA (Utah) Echmatemys callopyge (109166)
Uintan46.2 - 39.7USA (Utah) Echmatemys callopyge (185685 185688 186896 type locality: 205622 213059 213066 222801 222805)