# Amphicynodon

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Amphicynodon
> Markdown URL: https://mediated.wiki/source/Amphicynodon.md
> Source: https://en.wikipedia.org/wiki/Amphicynodon
> Source revision: 1288338982
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

Extinct genus of mammals

Not to be confused with [Amphicyon](/source/Amphicyon).

Amphicynodon Temporal range: Oligocene PreꞒ Ꞓ O S D C P T J K Pg N Dorsolateral aspect of skull in Amphicynodon teilhardi Scientific classification Kingdom: Animalia Phylum: Chordata Class: Mammalia Infraclass: Placentalia Order: Carnivora Family: †Amphicynodontidae Genus: †Amphicynodon Filhol, 1881 Type species †Amphicynodon velaunus (Aymard, 1846) Species †A. mongoliensis Janovskaja, 1970 †A. teilhardi Matthew and Granger, 1924 †A. typicus Schlosser, 1888 †A. chardini Cirot and De Bonis, 1992 †A. cephalogalinus Teilhard, 1915 †A. gracilis (Filhol, 1874) †A. crassirostris (Filhol, 1876) †A. brachyrostris (Filhol, 1876) †A. leptorhynchus (Filhol, 1874) †A. velaunus (Aymard, 1846) Synonyms Cynodon Aymard, 1848

***Amphicynodon*** was an extinct [genus](/source/Genus) of [caniform](/source/Caniform) carnivore. It has traditionally been considered an early bear,[1] although recent evidence has suggested it may be a unique member linked to other [pinnipeds](/source/Pinnipeds).[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*] It was endemic to Europe and Asia during the [Oligocene](/source/Oligocene), from approximately 33.9—28.4 [Mya](/source/Mya_(unit)) and existing for approximately [6](https://geoltime.github.io/?Ma=34−28) million years. It was similar in size to early [mustelids](/source/Mustelid).[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*]

## Fossil distribution

Some sites:

- Ulaan Khongil, [Mongolia](/source/Mongolia)

- Ronzon site, [Auvergne](/source/Auvergne_(region)) [France](/source/France)[2]

## References

1. **[^](#cite_ref-1)** Finarelli, John A. (2008). ["A Total Evidence Phylogeny of the Arctoidea (Carnivora: Mammalia): Relationships Among Basal Taxa"](https://www.researchgate.net/publication/226831270_A_Total_Evidence_Phylogeny_of_the_Arctoidea_Carnivora_Mammalia_Relationships_Among_Basal_Taxa). *Journal of Mammalian Evolution*. **15** (4): 231–259. [doi](/source/Doi_(identifier)):[10.1007/s10914-008-9074-x](https://doi.org/10.1007%2Fs10914-008-9074-x). [S2CID](/source/S2CID_(identifier)) [43524602](https://api.semanticscholar.org/CorpusID:43524602).

1. **[^](#cite_ref-2)** [Paleobiology database: Ronzon collection](https://paleodb.org/cgi-bin/bridge.pl?action=basicCollectionSearch&collection_list=31767)

## Further reading

- Rose, Kenneth David, The beginning of the age of mammals, The Johns Hopkins University Press (September 26, 2006)

v t e Extinct members of the family Ursidae Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Suborder: Caniformia †Hemicyoninae †Cephalogalini †Adelpharctos †Cephalogale †Cyonarctos †Filholictis †Phoberogale †Hemicyonini †Dinocyon †Hemicyon †Zaragocyon †Phoberocyonini †Phoberocyon †Plithocyon †Ursavinae †Ballusia †Ursavus Ailuropodinae Agriotheriini †Agriotherium †Huracan †Indarctos †Miomaci Ailuropodini †Agriarctos †Ailurarctos †Kretzoiarctos Ailuropoda †A. baconi †A. microta †A. wulingshanensis Tremarctinae †Arctodus †Arctotherium †Plionarctos Tremarctos †T. floridanus Ursinae †Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus †U. deningeri †U. dolinensis †U. etruscus †U. ingressus †U. kanivetz †U. kudarensis †U. maritimus tyrannus †U. minimus †U. pyrenaicus †U. rossicus †U. sackdillingensis †U. savini †U. spelaeus †U. vitabilis †Ursus arctos priscus Category:Prehistoric bears

v t e Genera of pinnipeds and their stem-allies Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Suborder: Caniformia Infraorder: Arctoidea Pan-Pinnipedia †Amphicynodontidae Allocyon Amphicticeps Amphicynodon Drassonax Kolponomos Pachycynodon Parictis Wangictis †Semantoridae Necromites Potamotherium Puijila Semantor Pinnipedimorpha †Enaliarctos Pinnipediformes †Pacificotaria †Pinnarctidion †Pteronarctos Pinnipedia Phocidae †Devinophoca Monachinae †Magnotherium Monachini †Afrophoca †Auroraphoca †Messiphoca Monachus Neomonachus †Eomonachus †Noriphoca †Palmidophoca †Pliophoca †Pontophoca †Pristiphoca †Terranectes Miroungini †Callophoca Mirounga Lobodontini †Acrophoca †Australophoca †Hadrokirus †Homiphoca Hydrurga Leptonychotes Lobodon Ommatophoca †Piscophoca †Properiptychus †Virginiaphoca Phocinae †Cryptophoca †Frisiphoca †Kawas †Leptophoca †Monachopsis †Monotherium †Phocanella †Prophoca †Sarmatonectes Erignathini Erignathus †Platyphoca Cystophorini Cystophora †Miophoca †Pachyphoca Phocini †Batavipusa †Gryphoca Halichoerus Histriophoca †Nanophoca Pagophilus Phoca †Planopusa †Praepusa Pusa Otarioidea see below↓ Otarioidea †Desmatophocidae Allodesmus Atopotarus Desmatophoca Eodesmus Odobenidae †Archaeodobenus †Imagotaria †Kamtschatarctos †Nanodobenus †Neotherium †Osodobenus †Pelagiarctos †Pontolis †Proneotherium †Prototaria †Pseudotaria †Titanotaria Neodobenia †Dusignathinae Dusignathus Gomphotaria Odobeninae †Aivukus Odobenus †Ontocetus †Pliopedia †Protodobenus †Valenictus Panotariidae †Eotaria Otariidae Callorhinae Callorhinus †Pithanotaria Otariinae †Thalassoleon Zalophini Eumetopias †Oriensarctos †Proterozetes Zalophus Otariini Arctocephalus Arctophoca †Hydrarctos Neophoca Otaria Phocarctos Lists List of pinnipeds List of fossil pinnipedimorphs

Taxon identifiers Amphicynodon Wikidata: Q3614662 GBIF: 3240118 IRMNG: 1208255 Open Tree of Life: 3612661 Paleobiology Database: 41307

This article related to a prehistoric carnivoran is a stub. You can help Wikipedia by adding missing information.

- [v](https://en.wikipedia.org/wiki/Template:Paleo-carnivora-stub)
- [t](/source/Template_talk%3APaleo-carnivora-stub)
- [e](https://en.wikipedia.org/wiki/Special:EditPage/Template:Paleo-carnivora-stub)

---
Adapted from the Wikipedia article [Amphicynodon](https://en.wikipedia.org/wiki/Amphicynodon) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Amphicynodon?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.