Prolimnocyon

Prolimnocyon Temporal range: late Paleocene to middle Eocene
lower jaw of Prolimnocyon antiquus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Hyaenodonta
Family:	†Limnocyonidae
Genus:	†Prolimnocyon Matthew, 1915
Type species
†Prolimnocyon atavus Matthew, 1915
Species
†P. antiquus (Matthew & Granger, 1915) †P. atavus (Matthew & Granger, 1915) †P. chowi (Meng, 1998) †P. eerius (Gingerich, 1989) †P. haematus (Gingerich & Deutsch, 1989)
Synonyms
synonyms of species: P. antiquus: Prolimnocyon elisabethae (Gazin, 1952)

Prolimnocyon ("before Limnocyon") is an extinct paraphyletic genus of limnocyonid hyaenodonts that lived in Asia and North America during the late Paleocene to middle Eocene. Prolimnocyon chowi is the earliest known member of the hyaenodontid family Limnocyonidae.

Phylogeny

The phylogenetic relationships of genus Prolimnocyon are shown in the following cladogram.

†Hyaenodonta	†Eoproviverra       †Boualitomidae          †Limnocyonidae              †Oxyaenodon    ?  †Prolaena    ?  †"Thinocyon" sichowensis     †Limnocyon potens         †Limnocyon cuspidens     †Limnocyon verus         †Thinocyon       †Iridodon         †Prolimnocyon atavus     †Prolimnocyon haematus         †Prolimnocyon antiquus     †Prolimnocyon chowi     †Prolimnocyon eerius       †Arfiidae       †Sinopidae       †Hyaenodontoidea         †Gazinocyon     †Pyrocyon       †Galecyon    †Afro‑Arabian clade      †Indohyaenodontidae     †Glibzegdouia       †Parvavorodon         †Koholiidae     †Tritemnodon       †Furodon     †Kyawdawia     †Paratritemnodon     †Teratodontidae     †Hyainailouroidea   †Apterodontinae       †Orienspterodon       †Hyainailourinae     †Hemipsalodon    ?  †Ischnognathus   †Akhnatenavus clade     †Akhnatenavus       †Paroxyaenini     †"Pterodon" sp. (BC 15’08)     †Hyainailourinae sp. (UON 84-359)     †Hyainailourinae sp. C (DPC 9243 & DPC 10315)     †Hyainailourinae sp. D (DPC 6545)         †Hyainailourinae sp. A (DPC 6555)     †"Pterodon" africanus     †Parapterodon       †"Pterodon" sp. (DPC 5036)     †"Pterodon" phiomensis   †Hyainailourini         †Kerberos     †"Pterodon" syrtos   †Pterodon clade     †Pterodontina           †Falcatodon     †Sectisodon       †Exiguodon     †Isohyaenodon zadoki           †Isohyaenodon  (†Isohyaenodontina)   †Isohyaenodon andrewsi       †Sivapterodon     †Hyainailouros bugtiensis         †Hyainailouros napakensis   †Hyainailouros       †Hyainailouros sulzeri     †Hyainailourinae sp. (GSN AD 100’96)       †Simbakubwa         †Leakitheriini     †Megistotherium         †Mlanyama     †Metapterodontini         †Pakakali     †Prionogalidae	†Lahimia clade †Limnocyon †Prolimnocyon †Arfia clade †Galecyon clade †Indohyaenodon clade †Tritemnodon clade †Kyawdawia clade †Hyainailouridae