Hyainailouros

Hyainailouros Temporal range: Early to Middle Miocene
lower jaw of Hyainailouros sulzeri
Restoration of H. sulzeri (far left), Cynelos eurydon, Afrosmilus africanus and H. napakensis (far right)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Hyaenodonta
Superfamily:	†Hyainailouroidea
Family:	†Hyainailouridae
Subfamily:	†Hyainailourinae
Tribe:	†Hyainailourini
Genus:	†Hyainailouros Biedermann, 1863
Type species
†Hyainailouros sulzeri Biedermann, 1863
Species
†H. bugtiensis (Pilgrim, 1912) †H. napakensis (Ginsburg, 1980) †H. sulzeri (Biedermann, 1863)
Synonyms
synonyms of genus: Hainailouros (Lavrov, 1999) Hyaenaelurus (Stehlin, 1907) Hyaenailurus (Rütimeyer, 1867) synonyms of species: H. napakensis: Hyainailouros nyanzae (Ginsburg, 1980) Pterodon nyanzae (Savage, 1965) H. sulzeri: Hyainailouros maximus (Meyer, 1837) Hyaenailurus sulzeri (Biedermann, 1863)

Hyainailouros ("hyena-cat") is an extinct polyphyletic genus of hyainailourid hyaenodont mammal of the polyphyletic tribe Hyainailourini within paraphyletic subfamily Hyainailourinae, that lived during the early to middle Miocene, of which there were at least three species spread across Europe, Africa, and Asia.

Closely related to other large African hyaenodonts such as Simbakubwa and Megistotherium, Hyainailouros walked with a semi-digitigrade stance and was probably capable of large, leaping bounds.

Alongside its African relatives and the last members of the genus Hyaenodon from Asia, Hyainailouros was among the largest hyaenodonts that existed.

Phylogeny

The phylogenetic relationships of genus Hyainailouros are shown in the following cladogram:

†Hyaenodonta	†Eoproviverra †Boualitomidae †Arfiidae †Limnocyonidae †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 †Arfia clade †Galecyon clade †Indohyaenodon clade †Tritemnodon clade †Kyawdawia clade †Hyainailouridae