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Hypisodus retallacki

Mammalia - Hypisodontidae

Taxonomy
Hypisodus retallacki was named by Meehan and Martin (2004) [No precise holotype locality data provided. Listed as "Upper Whitney Member, White River Formation, early Oligocene, near Broadwater, Morrill County, eastern Nebraska." Referred specimens from "near Bird Cage Gap, upper Whitney Member" and "Prospect Point of Swisher Helvas Canyon Member, Gering Formation, Banner County, eastern Nebraska."]. Its type specimen is USNM 1054, a skeleton, and it is not a trace fossil. Its type locality is UNSM Mo-0 (Whitney), which is in a Whitneyan terrestrial horizon in the Brule Formation of Nebraska.

Synonymy list
YearName and author
2004Hypisodus retallacki Meehan and Martin

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Ruminantiamorpha
—Ruminantia(Scopoli 1777)
infraorderTragulina
superfamilyHypertraguloidea
familyHypisodontidae
genusHypisodus
speciesretallacki

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.

†Hypisodus retallacki Meehan and Martin 2004
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: grazero
Diet 2: browsero
Reproduction: viviparoussubc
Created: 2005-08-26 14:03:05
Modified: 2005-09-19 12:23:23
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Nowak 1999, Carroll 1988, Hendy et al. 2009

Age range: Whitneyan or 31.80000 to 29.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Whitneyan31.8 - 29.5USA (Nebraska) Hypisodus retallacki (type locality: 17391)