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Ramoceros osborni

Mammalia - Antilocapridae

Taxonomy
Merycodus osborni was named by Matthew (1904). Its type specimen is AMNH 9476, a skeleton, and it is a 3D body fossil. It is the type species of Ramoceros.

It was recombined as Ramoceros osborni by Frick (1937), Galbreath (1953) and Janis and Manning (1998).

Synonyms
Synonymy list
YearName and author
1904Merycodus osborni Matthew p. 107 figs. 1 - 16
1937Ramoceros (Paramoceros) kansanus Frick
1937Ramoceros hitchcockensis Frick
1937Ramoceros osborni Frick p. 328 figs. Figs. 28, 28A (skull), 43 (ramus).
1937Ramoceros (Paramoceros) howardae Frick p. 330 figs. Figs. 33, 34
1937Ramoceros (Paramoceros) kansanus Frick p. 331
1953Ramoceros osborni Galbreath
1998Ramoceros osborni Janis and Manning

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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)
—Pecora()
familyAntilocapridae
subfamilyMerycodontinae()
genusRamoceros
speciesosborni()

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.

†Ramoceros osborni Matthew 1904
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Invalid names: Ramoceros (Paramoceros) howardae Frick 1937 [synonym], Ramoceros (Paramoceros) kansanus Frick 1937 [synonym], Ramoceros hitchcockensis Frick 1937 [synonym]
Diagnosis
ReferenceDiagnosis
W. D. Matthew 1904Antlers three-tined in mature, two-tined in a younger adult, bifurcate some distance above burr, and the posterior branch again bifurcate; considerably flattened and expanded at each bifurcation. Teeth less compressed than in M. furcatus and M. necatus, pre- molar not reduced in size. Fore and Hind feet with vestiges of lateral phalanges, but none of the lateral metapodials.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: browserf
Diet 2: grazerf
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-31 16:51:41
Source: f = family, o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Carroll 1988, Hendy et al. 2009, Nowak 1999, Nowak 1991

Age range: base of the Barstovian to the top of the Clarendonian or 16.30000 to 9.40000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Barstovian16.3 - 12.5USA (Nebraska) Ramoceros howardae (18109 18133) Ramoceros osborni (18192 18206 18275 18284) Ramoceros sp. (18141)
Barstovian16.3 - 12.5USA (Kansas) Ramoceros kansanus (18360 18373)
Barstovian - Clarendonian16.3 - 9.4USA (Colorado) Ramoceros osborni (18445)
Hemphillian10.3 - 4.9USA (Kansas) Ramoceros kansanus (18168)