Hyainailouridae
| Hyainailouridae Temporal range: Middle Eocene to Late Miocene
(Suspected Early Eocene origin, unconfirmed by fossils yet)
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| Megistotherium osteothlastes life restoration | |
| Apterodon macrognathus life restoration | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Hyaenodonta |
| Superfamily: | †Hyainailouroidea |
| Family: | †Hyainailouridae Pilgrim, 1932 |
| Type genus | |
| †Hyainailouros (polyphyletic genus) Biedermann, 1863
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| Subfamilies | |
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[see classification]
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| Synonyms | |
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list of synonyms:
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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.