The genus Leptocyon (Greek: leptos slender + cyon dog) includes 11 species and was the first canine. They were small and weighed around 2 kilograms (4...

the Miocene era,: 122  some 7 million to 8 million years ago. The genus Leptocyon (Greek: leptos slender + cyon dog) includes 11 species and was the first...

vulpines represents the culmination of a reversal that began with late Leptocyon species to resume the form of the primitive canine M2. — Richard H. Tedford...

Hesperocyonines, the genus Hesperocyon, gave rise to Archaeocyon and Leptocyon. These branches led to the borophagine and canine radiations. Around 8...

Carnivoramorpha 43 million YBP. The caniforms included the fox-like genus Leptocyon, whose various species existed from 24 million YBP before branching 11...

wolf-like and fox-like canines. The caniforms included the fox-like genus Leptocyon whose various species existed from 34 million YBP before branching 11...

†Leptocyon †Metalopex †Nurocyon †Prototocyon Urocyon †U. citrinus †U. galushai †U. minicephalus †U. progressus †U. webbi Vulpes †V. qiuzhudingi †V. riffautae...

camelid genera: Procamelus, Aepycamelus and Protolabis three canid genera: Leptocyon, Cynarctus and evidence of scavenging from a bone-crushing canid, possibly...

†Leptocyon †Metalopex †Nurocyon †Prototocyon Urocyon †U. citrinus †U. galushai †U. minicephalus †U. progressus †U. webbi Vulpes †V. qiuzhudingi †V. riffautae...

†Leptocyon †Metalopex †Nurocyon †Prototocyon Urocyon †U. citrinus †U. galushai †U. minicephalus †U. progressus †U. webbi Vulpes †V. qiuzhudingi †V. riffautae...

alongside, and possibly competed with, early canids such as Hesperocyon and Leptocyon, although they were far less common and seem to have been more geographically...

Canis falconeri Canis lepophagus Genus Cerdocyon Genus Cynodesmus Genus Leptocyon Genus Phlaocyon Subfamily Hesperocyoninae Genus Hesperocyon Subfamily...

These other species have been placed the genera Carpocyon, Desmocyon, Leptocyon, Metatomarctus, Osbornodon, Otarocyon, Paracynarctus, Paratomarctus, and...

†Leptocyon †Metalopex †Nurocyon †Prototocyon Urocyon †U. citrinus †U. galushai †U. minicephalus †U. progressus †U. webbi Vulpes †V. qiuzhudingi †V. riffautae...

†Leptocyon †Metalopex †Nurocyon †Prototocyon Urocyon †U. citrinus †U. galushai †U. minicephalus †U. progressus †U. webbi Vulpes †V. qiuzhudingi †V. riffautae...

Hipparion tehonense Hypohippus affine Hypohippus affinis Ischyrocyon gidleyi Leptocyon vafer Megatylopus primaevus Neohipparion affine Nothotylopus camptognathus...

Anchitheriinae (horse) Arikarictis chapini (mustelid) Daphoenodon (bear-dog) Leptocyon (canine) Eomyidae (gopher) Geomyoidea (pocket gopher) Herpetotherium (pygmy...

I. mohavensis Kern County, California. Junior synonym of I. gidleyi. Leptocyon L. vafer Kern County, California (lower & upper parts of the formation)...

†Leptocyon †Metalopex †Nurocyon †Prototocyon Urocyon †U. citrinus †U. galushai †U. minicephalus †U. progressus †U. webbi Vulpes †V. qiuzhudingi †V. riffautae...

species †Leptocyon †Leptocyon delicatus – type locality for species †Leptocyon douglassi †Leptocyon gregorii †Leptocyon matthewi †Leptocyon vafer – or...

lacota (Mustelidae) †Arctonasua floridana (Raccoon) †Paranasua biradica †Leptocyon †Epicyon haydeni and E. saevus (Proto-dog) †Nimravides galiani (False...

Crookston Bridge Member. Partial left ramus (UNSM 25467). A mustelid. Leptocyon L. vafer Brown, Cherry, Keya Paha, Knox & Sheridan counties, Nebraska...

†Leptarctus ancipidens †Leptarctus webbi – type locality for species †Leptocyon – tentative report †Leptomactra †Leptomactra delumbis †Leptomactra valhosierr...

†Leptarctus wortmani †Leptocyon †Leptocyon leidyi †Leptocyon tejonensis – type locality for species †Leptocyon vafer †Leptocyon vulpinus †Leptodontomys...

locality for species †Leptarctus wortmani – type locality for species †Leptocyon †Leptocyon vafer Lepus †Lepus californicus – or unidentified comparable form...

†Lemmiscus curtatus †Lepoides †Lepoides lepoides †Leptocyon †Leptocyon leidyi †Leptocyon matthewi †Leptocyon vafer †Leucothoe †Leucothoe nevadensis †Limnoecus...

lautus Amphicyon galushai Craterogale cf. simus Leptarctus cf. ancipidens Leptocyon vulpinus Tephrocyon scitulus Merycochoerus proprius Reptiles Macrochelys...

E. davisi Rio Arriba County, New Mexico. Jaw elements. A canine dog. Leptocyon L. matthewi Round Mountain Quarry, Rio Arriba County, New Mexico. Skull...

variant N. geismarianus var mollis, have been reassigned to the genus Leptocyon. The genus Nothocyon was assigned to the family Subparictidae in 2023...

†Leptochoerus supremus †Leptocyon †Leptocyon gregorii – or unidentified comparable form †Leptocyon leidyi – type locality for species †Leptocyon matthewi – type...