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Vulpes stenognathus

Mammalia - Carnivora - Canidae

Taxonomy
Vulpes stenognathus was named by Savage (1941). Its type locality is Optima, which is in a Hemphillian terrestrial horizon in the Ogallala Formation of Oklahoma.

Synonymy list
YearName and author
1941Vulpes stenognathus Savage
2009Vulpes stenognathus Tedford et al. p. 49 figs. 3, 7, 17, 18I–K, 19–22, 27, 52; appendices 2–4

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
RankNameAuthor
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
Laurasiatheria
Scrotifera
Ferae()
CarnivoramorphaWyss and Flynn 1993
CarnivoraformesFlynn et al.
orderCarnivoraBowditch 1821
suborderCaniformiaKretzoi 1943
superfamilyCanoideaSimpson 1931
familyCanidaeFischer 1817
genusVulpesFrisch 1775
speciesstenognathus

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.

Diagnosis
ReferenceDiagnosis
R. H. Tedford et al. 2009Differs from V. vulpes of North America in anteroposteriorly short- er and less robust premolars; p4 often with second posterior cusp; m1 entoconid usually smaller relative to the hypoconid; talonid lacks transverse crest between entoconid and hypoconid, hypoconulid shelf smaller; m2 longer relative to length of m1 with ante- rolabial cingulum stronger and paraconid shelf larger; muzzle narrower; frontoparietal suture more anterior, with frontal crests joining at suture to form sagittal crest; braincase relatively narrower with frontal region much less expanded; small frontal sinus that penetrates base of postorbital process; and small bulla with less produced lip of auditory meatus