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Sinopa
''Sinopa'' ("swift fox") is a genus of hyaenodontid mammal from family Sinopidae, that lived in North America and Asia during the early to middle Eocene. Description ''Sinopa'' was a small genus of hyaenodontid mammals. Its carnassial teeth were the second upper molar and the lower third. ''Sinopa'' species had an estimated weight of 1.33 to 13.97 kilograms. The type specimen was found in the Bridger formation in Uinta County, Wyoming, and existed 50.3 to 46.2 million years ago. Taxonomy The putative African species ''"Sinopa" ethiopica'' from Egypt was considered a species of '' Metasinopa'' by Savage (1965), although Holroyd (1994) considered it a potential new genus related to '' Quasiapterodon''.Lewis, M. E., Morlo, M. (2010): Creodonta. – In : Werdelin, L., Sanders, W. (eds), Cenozoic Mammals of Africa. University of California Press, Berkeley, pp. 543–560. https://doi.org/10.1525/california/9780520257214.003.0026 Phylogeny The phylogenetic relationships of genus '' ...
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Sinopidae Sp
Sinopidae ("swift foxes") is a family of extinct predatory mammals from extinct order Hyaenodonta. Fossil remains of these mammals are known from early to middle Eocene deposits in North America, Europe and Asia. Classification and phylogeny Taxonomy * Family: †Sinopidae ** Genus: †'' Acarictis'' *** †''Acarictis ryani'' ** (unranked): †''Sinopa'' clade *** Genus: †'' Prototomus'' (paraphyletic genus) **** †''Prototomus deimos'' **** †''Prototomus girardoti'' **** †''Prototomus martis'' **** †''Prototomus minimus'' **** †''Prototomus phobos'' **** †''Prototomus robustus'' **** †''Prototomus secundarius'' **** †''Prototomus viverrinus'' *** Genus: †'' Sinopa'' **** †''Sinopa jilinia'' **** †''Sinopa lania'' **** †''Sinopa longipes'' **** †''Sinopa major'' **** †''Sinopa minor'' **** †''Sinopa piercei'' **** †''Sinopa pungens'' **** †''Sinopa rapax'' **** †''Sinopa'' sp. A 'AMNH FM 11538'' *** ''Incertae sedis ...
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Sinopidae
Sinopidae ("swift foxes") is a family of extinct predatory mammals from extinct order Hyaenodonta. Fossil remains of these mammals are known from early to middle Eocene deposits in North America, Europe and Asia. Classification and phylogeny Taxonomy * Family: †Sinopidae ** Genus: †'' Acarictis'' *** †''Acarictis ryani'' ** (unranked): †''Sinopa'' clade *** Genus: †'' Prototomus'' (paraphyletic genus) **** †''Prototomus deimos'' **** †''Prototomus girardoti'' **** †''Prototomus martis'' **** †''Prototomus minimus'' **** †''Prototomus phobos'' **** †''Prototomus robustus'' **** †''Prototomus secundarius'' **** †''Prototomus viverrinus'' *** Genus: †''Sinopa'' **** †''Sinopa jilinia'' **** †''Sinopa lania'' **** †''Sinopa longipes'' **** †''Sinopa major'' **** †''Sinopa minor'' **** †''Sinopa piercei'' **** †''Sinopa pungens'' **** †''Sinopa rapax'' **** †''Sinopa'' sp. A 'AMNH FM 11538'' *** ''Incertae sedis ...
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Pyrocyon
''Pyrocyon'' ("fire dog") is a genus of small carnivorous hyaenodontids that lived in North America during the early Eocene. Fossils of ''Pyrocyon'' have been found in Wyoming and Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes .... Weight of ''Pyrocyon dioctetus'' has been estimated at around 2.6 kilograms. Phylogeny The phylogenetic relationships of genus ''Pyrocyon'' are shown in the following cladogram. References Hyaenodonts Eocene mammals Eocene mammals of North America Eocene genus first appearances Prehistoric placental genera {{paleo-mammal-stub ...
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Tritemnodon
''Tritemnodon'' ("three cutting teeth") was a genus of hyaeanodontids that lived during the early Eocene.Naoko Eg (2004."A new genus and species of hyaenodontid creodont from the Pondaung Formation (Eocene, Myanmar)"''Journal of Vertebrate Paleontology'' 24(2): 502–506 Fossils of ''Tritemnodon agilis'' have been found in Utah and Wyoming (Willwood Formation of Big Horn County and the Lower Bridger Formation of Uinta County), and it was the size of a wolf The wolf (''Canis lupus''; : wolves), also known as the gray wolf or grey wolf, is a large canine native to Eurasia and North America. More than thirty subspecies of ''Canis lupus'' have been recognized, and gray wolves, as popularly u .... Phylogeny The phylogenetic relationships of genus ''Tritemnodon'' are shown in the following cladogram. References Hyaenodonts Eocene mammals of North America Prehistoric placental genera {{paleo-mammal-stub ...
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Metasinopa
''Metasinopa'' ("next to ''Sinopa ''Sinopa'' ("swift fox") is a genus of hyaenodontid mammal from family Sinopidae, that lived in North America and Asia during the early to middle Eocene. Description ''Sinopa'' was a small genus of hyaenodontid mammals. Its carnassial teeth w ...''") is a genus of Teratodontidae, teratodontine Hyaenodonta, hyaenodont that lived during the early Oligocene in Egypt (northern Africa). Taxonomy Although ''Metasinopa fraasi'' is the only unambiguous species of the genus, the early Miocene species ''Metasinopa napaki'' from Uganda was originally assigned to ''Metasinopa'' by Savage (1965), but was later moved to ''Paracynohyaenodon'' by van Valen (1967), and is now assigned to the Miocene ''Anasinopa'', as ''A. napaki''. ''"Sinopa" ethiopica'' has been assigned to ''Metasinopa'' following Savage (1965), but may be its own genus considering its younger age relative to ''M. fraasi''. Phylogeny The phylogenetic relationships of genus ''Metasinopa' ...
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Hyaenodonta
Hyaenodonta ("hyena teeth") is an extinct order of hypercarnivorous placental pan-carnivoran mammals from mirorder Ferae. Hyaenodonts were important mammalian predators that arose during the early Paleocene in Europe and persisted well into the late Miocene. Characteristics Hyaenodonts are characterized by long skulls, slender jaws, slim bodies and a plantigrade stance. They generally ranged in size from 30 to 140 cm at the shoulder. While '' Simbakubwa kutokaafrika'' may have been up to (surpassing the modern polar bear in size) and ''Hyaenodon gigas'' (the largest species from genus '' Hyaenodon'') was as much as 1.4 m high at the shoulder, 3.0 m long and weighed about 330 kg, most of hyaenodonts were in the 5–15 kg range, equivalent to a mid-sized dog. The anatomy of their skulls show that they had a particularly acute sense of smell, while their teeth were adapted for shearing, rather than crushing. Because of their size range, it is probable tha ...
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Galecyon
''Galecyon'' ("polecat-dog") is a genus of hyaenodonts that lived during the early Eocene in Europe and North America (found in the Clarks Fork and Powder River basins of Wyoming Wyoming () is a state in the Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the sou ...). Description ''Galecyon'' had robust canines and short, deep jaws. Prior to 2015, little was known about its post-cranial skeleton. However, following the discovery of more complete fossils, it is now known to have been a primarily terrestrial animal weighing between , lacking the adaptations for climbing found in some of its close relatives. Phylogeny The phylogenetic relationships of genus ''Galecyon'' are shown in the following cladogram. References Hyaenodonts Eocene mammals Prehistoric mammals of North America Prehistoric mammals of Eu ...
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Hyaenodontoidea
Hyaenodontoidea ("hyena teeth") is a superfamily of extinct predatory mammals from extinct order Hyaenodonta. Fossil remains of these mammals are known from early Eocene to early Miocene deposits in North America, Europe and Asia. Classification and phylogeny Taxonomy * Superfamily: †Hyaenodontoidea ** Family: †Hyaenodontidae ** Family: †Proviverridae Proviverridae ("before civets") is a family of extinct predatory mammals from extinct superfamily Hyaenodontoidea within extinct order Hyaenodonta. Fossil remains of these mammals are known from early to late Eocene deposits in Europe. Classif ... Phylogeny The phylogenetic relationships of superfamily Hyaenodontoidea are shown in the following cladogram: References {{Hyaenodonta Hyaenodonts Paleogene mammals of North America Paleogene mammals of Asia Paleogene mammals of Europe Vertebrate superfamilies ...
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Indohyaenodontidae
Indohyaenodontidae ("indian ''Hyaenodonts''") is a family of extinct predatory mammals from extinct order Hyaenodonta. Fossil remains of these mammals are known from early to late Eocene deposits in Asia.R. S. Rana, K. Kumar, S. P. Zack, F. Solé, K. D. Rose, P. Missiaen, L. Singh, A. Sahni and T. Smith (2015."Craniodental and postcranial morphology of ''Indohyaenodon raoi'' from the early Eocene of India, and its implications for ecology, phylogeny, and biogeography of hyaenodontid mammals."Journal of Vertebrate Paleontology 35(5):e965308:1-22 Classification and phylogeny Taxonomy * Family: †Indohyaenodontidae ** Genus: †''Indohyaenodon ''Indohyaenodon'' ("indian ''Hyaenodon''") is a genus of extinct hyaenodont mammals from family Indohyaenodontidae, that lived during the early Eocene in India India, officially the Republic of India (Hindi: ), is a country in South Asia. ...'' *** †''Indohyaenodon raoi'' ** Genus: †'' Yarshea'' *** †''Yarshea cruenta'' ...
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