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Echmatemys cibollensis

Reptilia - Testudines - Geoemydidae

Taxonomy
Emys cibollensis was named by Cope (1877). Its type specimen is USNM 2578 (holotype), a partial shell (shell fragments), and it is a 3D body fossil. Its type locality is Gallinas River region, which is in a Wasatchian terrestrial horizon in New Mexico.

It was synonymized subjectively with Echmatemys lativertebralis by Lichtig and Lucas (2015); it was recombined as Echmatemys cibollensis by Hay (1906), Hay (1930), Zonneveld et al. (2000) and Vlachos (2018).

Synonymy list
YearName and author
1877Emys cibollensis Cope
1902Emys cibollensis Cope
1902Emys cibollensis Hay p. 447
1906Echmatemys cibollensis Hay p. 29
1930Echmatemys cibollensis Hay p. 95
2000Echmatemys cibollensis Zonneveld et al.
2018Echmatemys cibollensis Vlachos

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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
speciescibollensis()

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 2018“Echmatemys” cibollensis can be diagnosed as a member of Pan-Testudinoidea based on the extensive covering of the plastral scutes viscerally and is tentatively associated with Echmatemys based on the morphology of the epiplastra. “Echmatemys” cibollensis differs from other Echmatemys by the restriction of the short and wide gulars to the epiplastra and medial covering of the epiplastra by the humeral scutes.
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: Hendy et al. 2009, Carroll 1988, Uetz 2005, Holroyd et al. 2001

Age range: base of the Wasatchian to the top of the Bridgerian or 55.80000 to 46.20000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Wasatchian55.8 - 50.3USA (New Mexico) Emys cibollensis (131867)
Bridgerian50.3 - 46.2USA (Wyoming) Echmatemys cibollensis (70264)