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Cranioceras unicornis

Osteichthyes - Dromomerycidae

Taxonomy
Cranioceras unicornis was named by Matthew (1918) [genotype]. Its type locality is Snake Creek Fauna, which is in a Barstovian/Clarendonian channel sandstone in Nebraska.

Synonyms
Synonymy list
YearName and author
1918Cranioceras unicornis Matthew
1937Cranioceras granti Frick
1937Cranioceras mefferdi Frick
2007Cranioceras unicornis Prothero and Liter p. 247
2008Cranioceras unicornis Prothero and Liter

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
RankNameAuthor
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Ruminantiamorpha
—Ruminantia(Scopoli 1777)
—Pecora()
superfamilyCervoidea
familyDromomerycidaeFrick 1937
tribeCranioceratiniFrick 1937
genusCranioceras
speciesunicornis

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.

†Cranioceras unicornis Matthew 1918
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Invalid names: Cranioceras granti Frick 1937 [synonym], Cranioceras mefferdi Frick 1937 [synonym]
Diagnosis
ReferenceDiagnosis
D. R. Prothero and M. R. Liter 2008Larger species of Cranioceras (Table 1).
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialo
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: browserg
Reproduction: viviparoussubc
Created: 2009-01-04 10:44:14
Modified: 2009-01-04 12:44:14
Source: g = genus, f = family, o = order, subc = subclass, c = class, subp = subphylum
References: Janis and Manning 1998, Nowak 1999, Carroll 1988, Lillegraven 1979, Solounias and Moelleken 1993, Hendy et al. 2009

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

Collections (34 total)


Time interval Ma Country or state Original ID and collection number
Miocene23.04 - 5.333USA (South Dakota) Cranioceras unicornis (18064)
Barstovian16.3 - 12.5USA (Nebraska) Cranioceras granti (18119) Cranioceras mefferdi (18281)
Early/Lower Barstovian16.3 - 12.5USA (Nebraska) Cranioceras unicornis (17995)
Barstovian - Clarendonian16.3 - 9.4USA (Nebraska) Cranioceras granti (18049) Cranioceras mefferdi (18270) Cranioceras unicornis (18077 type locality: 230906)
Clarendonian12.5 - 9.4USA (South Dakota) Cranioceras dakotensis (18063) Cranioceras unicornis (18484)
Clarendonian12.5 - 9.4USA (Nebraska) Cranioceras granti (18042 18118 18135 18214 18218 18227 18333 18334 18335 18458 18496) Cranioceras mefferdi (18152 18260 18408) Cranioceras unicornis (18082 18176 18301 18336)
Late/Upper Clarendonian12.5 - 9.4USA (Nebraska) Cranioceras unicornis (18066)
Clarendonian - Hemphillian12.5 - 4.7USA (South Dakota) Cranioceras dakotensis (18352 18421)
Clarendonian - Hemphillian12.5 - 4.7USA (Nebraska) Cranioceras unicornis (18236)
Clarendonian - Hemphillian12.5 - 4.7USA (Washington) Cranioceras unicornis (175228)
Tortonian11.63 - 7.246USA (California) Cranioceras unicornis (19466)