Hyainailouridae

Hyainailouridae ("hyena-like cats") is a paraphyletic family of extinct predatory mammals within the polyphyletic superfamily Hyainailouroidea within extinct order Hyaenodonta. Fossil records show hyainailourids arose during the Middle Eocene, although Early Eocene origin is suspected, the family persisted into the Late Miocene.'' Fossils of this group have been found in Eurasia, Africa, and North America. ==Classification and phylogeny== ===Relations=== Hyainailouridae used to be considered a subfamily of Hyaenodontidae, but cladistic study by Sole et al., (2013, 2015) treats it as a distinct family. Two subfamilies are recognized, Apterodontinae and paraphyletic Hyainailourinae.

===Taxonomy=== {|class="wikitable" |- style="vertical-align:top;" | Family: †Hyainailouridae (paraphyletic family) Subfamily: †Apterodontinae Genus: †Apterodon †Apterodon altidens †Apterodon gaudryi †Apterodon langebadreae †Apterodon macrognathus †Apterodon rauenbergensis †Apterodon saghensis †Apterodon sp. [Dur At-Talah escarpment, Libya] Genus: †Quasiapterodon †Quasiapterodon minutus Subfamily: †Hyainailourinae (paraphyletic subfamily) Genus: †Ekweeconfractus †Ekweeconfractus amorui Genus: †Leakitherium †Leakitherium hiwegi Genus: †Megistotherium †Megistotherium osteothlastes Genus: †Mlanyama †Mlanyama sugu Genus: †Pakakali †Pakakali rukwaensis Genus: †Simbakubwa †Simbakubwa kutokaafrika Genus: †Thereutherium †Thereutherium thylacodes (unranked): †'Akhnatenavus clade' Genus: †Akhnatenavus †Akhnatenavus leptognathus †Akhnatenavus nefertiticyon Genus: †Hemipsalodon †Hemipsalodon grandis †Hemipsalodon viejaensis Genus: †Ischnognathus †Ischnognathus savagei (unranked): †'Maocyon/Orienspterodon clade' Genus: †Maocyon †Maocyon peregrinus Genus: †Orienspterodon †Orienspterodon dahkoensis †Orienspterodon mianchiensis Tribe: †Hyainailourini (polyphyletic tribe) Genus: †Bastetodon †Bastetodon syrtos Genus: †Exiguodon †Exiguodon pilgrimi Genus: †Falcatodon †Falcatodon schlosseri Genus: †Hyainailouros (polyphyletic genus) †Hyainailouros bugtiensis †Hyainailouros napakensis †Hyainailouros sulzeri Genus: †Isohyaenodon (polyphyletic genus) †Isohyaenodon andrewsi †Isohyaenodon zadoki Genus: †Parapterodon †Parapterodon lostangensis Genus: †Sectisodon †Sectisodon markgrafi †Sectisodon occultus Genus: †Sekhmetops †Sekhmetops africanus †Sekhmetops phiomensis Genus: †Sivapterodon †Sivapterodon lahirii (unranked): †'Pterodon clade' Genus: †Kerberos †Kerberos langebadreae Genus: †Pterodon †Pterodon dasyuroides Incertae sedis: †"Pterodon" sp. [DPC 5036] Tribe: †Metapterodontini Genus: †Metapterodon †Metapterodon brachycephalus †Metapterodon kaiseri †Metapterodon stromeri Tribe: †Paroxyaenini Genus: †Paroxyaena †Paroxyaena galliae †Paroxyaena pavlovi Incertae sedis: †"Pterodon" sp. [BC 15'08] †Hyainailourinae sp. [GSN AD 100'96] †Hyainailourinae sp. [UON 84-359] †Hyainailourinae sp. A [DPC 6555] †Hyainailourinae sp. C [DPC 9243 & DPC 10315] †Hyainailourinae sp. D [DPC 6545]