Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Eucyon davisi

Mammalia - Carnivora - Canidae

Taxonomy
Canis davisi was named by Merriam (1911). Its type specimen is UCMP 545, a set of teeth, and it is a 3D body fossil.

It was recombined as Eucyon davisi by Tedford and Qiu (1996) and Tedford et al. (2009).

Synonyms
Synonymy list
YearName and author
1911Canis davisi Merriam p. 242 figs. 11 - 13
1937Leptocyon shermanensis Hibbard
1942Vulpes shermanensis Gregory
1956Canis condoni Shotwell
1996Eucyon davisi Tedford and Qiu
2009Eucyon davisi Tedford et al. p. 92 figs. 27, 33C–T, 34A–Q, 35A–S, 36A–B, 39, 40, 43–44, 50–52, 60C, 61C; appendices 2–4

Is something missing? Join the Paleobiology Database and enter the data

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()
Epicynodontia
RankNameAuthor
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
subfamilyCaninaeGill 1872
tribeCaniniFischer de Waldheim 1817
subtribeCanina()
genusEucyon
speciesdavisi()

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. 2009Eucyon davisi differs from E.? skinneri in its larger size; longer jaw; more elongate, taller crowned premolars; p4 with second posterior cusp; m1 trigonid relatively longer, protoconid taller crowned, entoconid and hypoconid taller crowned, and larger hypoconulid shelf.
Eucyon davisi differs from Canis ferox and C. lepophagus in its smaller size and less robust skull and jaws; frontal sinus ends well before frontoparietal suture; jugal shallower relative to length of skull; width of skull across cheek teeth greater relative to length of skull; sagittal crest weaker; inion wider (never narrows to a point); premolars less robust; p4 anterolabial border generally less rounded; M1 paracone and metacone lower crowned and nearly subequal in size with stronger labial cingulum and stronger parastyle; m1 talonid without transverse crest between entoconid and hypoconid and hypoconulid shelf relatively smaller; angular process of mandible less expanded with smaller fossae for pterygoid muscle; and radius/tibia ratio less than 80%.