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Paradaphoenus
''Paradaphoenus'' is a physically small amphicyonid that inhabited North America from the Early Oligocene to the Middle Miocene, 33.3—15.97 Annum, Ma, existing for approximately . Fossils have been found at Haystack, Oregon, Banner County, Nebraska, Dawes County, Nebraska, and Sheep Mtn, South Dakota. Sources Cenozoic mammals of North America Amphicyonidae Miocene carnivorans Burdigalian genus extinctions Rupelian genus first appearances Prehistoric carnivoran genera {{paleo-carnivora-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphicyonidae
Amphicyonidae is an extinct family of terrestrial carnivorans belonging to the suborder Caniformia. They first appeared in North America in the middle Eocene (around 45 mya), spread to Europe by the late Eocene (35 mya), and appear in Asia, and Africa by the early Miocene (23 mya). They had largely disappeared worldwide by the late Miocene (8 mya), with the latest recorded species at the end of the Miocene in Pakistan. They were among the first carnivorans to evolve large body size. Later in their history, they came into competition with hesperocyonine and borophagine canids. As dogs evolved similar body sizes and cranial and dental adaptations, the rise of these groups may have led to their extinction. Amphicyonids are often colloquially referred to as "bear-dogs". Taxonomy The family was erected by Haeckel (1886) lso attributed to Trouessart (1885) Their exact position has long been disputed. Some early paleontologists defined them as members of the family Canidae, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
