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Plithocyon ursinus

Mammalia - Carnivora - Ursidae

Taxonomy
Canis ursinus was named by Cope (1875).

It was recombined as Amphicyon ursinus by Cope (1879) and Matthew (1902); it was recombined as Aelurodon ursinus by Scott and Osborn (1890) and Hay (1902); it was recombined as Dinocyon ursinus by Matthew (1902); it was recombined as Hemicyon ursinus by Frick (1926) and VanderHoof and Gregory (1940); it was recombined as Plithocyon ursinus by Hunt (1998).

Synonymy list
YearName and author
1875Canis ursinus Cope
1879Amphicyon ursinus Cope p. 46
1890Aelurodon ursinus Scott and Osborn p. 68
1902Aelurodon ursinus Hay p. 774
1902Dinocyon ursinus Matthew
1902Amphicyon ursinus Matthew p. 290
1926Hemicyon ursinus Frick p. 35 figs. Frontispiece, Figures 4, 5A and B, 9, 10 and lOA, 13A and B, 14, 15
1940Hemicyon ursinus VanderHoof and Gregory
1998Plithocyon ursinus Hunt, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
RankNameAuthor
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Ferae()
CarnivoramorphaWyss and Flynn 1993
CarnivoraformesFlynn et al.
orderCarnivora
suborderCaniformiaKretzoi 1943
infraorderCanoidea(Simpson 1931)
superfamilyArctoideaFlower 1869
Ursida
superfamilyUrsoideaFischer de Waldheim 1817
familyUrsidaeGray 1825
subfamilyHemicyoninae
genusPlithocyonGinsburg 1955
speciesursinus(Cope 1875)

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.

Plithocyon ursinus Cope 1875
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Diagnosis
ReferenceDiagnosis
C. Frick 1926Prominent premasseteric fossa; tuberculars unusually .large relative to premolars; anterior premolars separated by diastema; posterior mental foramen below anterior edge of p4.