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Baena hayi

Reptilia - Baenidae

Taxonomy
Baena hayi was named by Gilmore (1916). Its type specimen is USNM 6728, a shell (a carapace and plastron), and it is a 3D body fossil. Its type locality is Niobrara County, United States Geological Survey, which is in a Maastrichtian terrestrial horizon in the Lance Formation of Wyoming.

Synonymy list
YearName and author
1916Baena hayi Gilmore p. 641 figs. Pl. 32-33
1930Baena hayi Hay p. 72
1972Baena hayi Gaffney pp. 301-302
2015Baena hayi Joyce and Lyson

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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
Testudinata(Oppel 1811)
Paracryptodira
familyBaenidaeCope 1882
Baenodda()
Eubaeninae(Williams 1950)
genusBaena
specieshayi

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.

Baena hayi Gilmore 1916
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Diagnosis
ReferenceDiagnosis
E. S. Gaffney 1972"Baena hayi is distinguished at once from all other species of the genus by the proportion of the carapace, it being the only one known in which the width exceeds the breadth. From B. marshi this species may be distinguished by having a sculptured carapace, and the wider marginal areas on the ventral surface. From B. hatcheri it differs in the contour of the shell, being short and truncated at both ends, whereas B. hatcheri is relatively long, with a somewhat pointed anterior end. The absence of supernumerary scutes lateral to the first vertebral also serves further to istinguish it from the latter species" (Gilmore, 1916b, p. 643).
Measurements
No measurements are available
Composition: phosphaticsubp
Entire body: yesg
Adult length: 100 to < 1000g
Environment: freshwaterg
Locomotion: actively mobilec
Life habit: aquaticg
Diet: carnivoreg
Created: 2006-04-19 15:11:27
Modified: 2006-04-19 17:11:27
Source: g = genus, c = class, subp = subphylum
References: Holroyd et al. 2001, Hendy et al. 2009, Kiessling 2004, Carroll 1988

Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Maastrichtian72.2 - 66.0USA (Wyoming) Baena hayi (type locality: 122902)