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Leptocyon

Mammalia - Carnivora - Canidae

Synonyms
Synonymy list
YearName and author
1918Leptocyon Matthew
1963Neocynodesmus Macdonald
1969Leptocyon Webb
1988Leptocyon Carroll
1988Neocynodesmus Carroll
1998Leptocyon Munthe
2008Leptocyon Wang and Tedford
2009Leptocyon Tedford et al. p. 14
2016Leptocyon Smith et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
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
subfamilyCaninaeGill 1872
genusLeptocyon

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. 2009Leptocyon differs from Vulpes in possession of the following primi- tive characters: greater postorbital constriction; I1–I3 with medial cusplets; M1 and M2 with stronger parastyle; m1 hypoconulid absent, its entoconid relatively smaller and enlarged only in most derived species; m2 with weaker anterolabial cingulum and meta- conid smaller than or equal in size to protoconid in less derived species, postpa- rietal foramen still present in early species; humerus with entepicondylar foramen; ulna and fibula short and more robust with larger distal articular facets for radius and tibia; radius with distal exostosis in early species (Wang and Rothschild, 1992); tibia with longer anteroproximal crest, less anteriorly and distally extended proximolateral and proximomedial articular surfaces for femur; relatively larger entocuneiform and well- developed functional metatarsal I with two phalanges.