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Xenocyon texanus

Mammalia - Carnivora - Canidae

Taxonomy
Canis texanus was named by Troxell (1915). It is a 3D body fossil. Its type locality is head of Rock Creek, Mayfield Ranch, which is in an Irvingtonian terrestrial horizon in the Tule Formation of Texas.

It was recombined as Protocyon texanus by Kraglievich (1952), Nowak (1979) and Kurten and Anderson (1980); it was recombined as Cuon texanus by Berta (1988); it was recombined as Xenocyon texanus by Wang et al. (2008), Tedford et al. (2009) and Bartolini-Lucenti and Spassov (2022).

Synonymy list
YearName and author
1915Canis texanus Troxell
1952Protocyon texanus Kraglievich
1979Protocyon texanus Nowak
1980Protocyon texanus Kurten and Anderson p. 172
1988Cuon texanus Berta
2008Xenocyon texanus Wang et al.
2009Xenocyon texanus Tedford et al. p. 152 figs. 57A–C; appendix 3
2022Xenocyon texanus Bartolini-Lucenti and Spassov

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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
RankNameAuthor
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Ferae()
CarnivoramorphaWyss and Flynn 1993
CarnivoraformesFlynn et al.
orderCarnivora
familyCanidae
subfamilyCaninaeGill 1872
tribeCaniniFischer de Waldheim 1817
genusXenocyonKretzoi 1938
speciestexanus(Troxell 1915)

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.

Xenocyon texanus Troxell 1915
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Diagnosis
ReferenceDiagnosis
R. H. Tedford et al. 2009Distinguished from Xenocyon lycaonoides, the only other species of the genus to occur in North America, by slightly larger size, m1 talonid wider relative to trigonid; hypoconid more marginal on the talonid; and M1 metaconule more salient than in most X. lycaonoides.