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Viverravidae
Viverravidae ("ancestors of viverrids") is an extinct monophyletic family of mammals from extinct superfamily Viverravoidea within the clade Carnivoramorpha, that lived from the early Palaeocene to the late Eocene in North America, Europe and Asia.Malcolm C. McKenna, Susan K. Bell: ''Classification of Mammals: Above the Species Level'' in Columbia University Press, New York (1997), 631 Seiten. They were once thought to be earliest carnivorans and ancestral to extant carnivorans, but now are placed outside the order Carnivora based on cranial morphology as a relatives (a plesion-group) to extant carnivorans. General characteristics Wang and Tedford propose that they arose in North America 66-60 million years ago, spread to Asia then later to Europe, and were the first carnivoramorphans and possessed the first true pair of carnassial teeth.Wang, Xiaoming; Tedford, Richard H. (2008.) "Dogs: Their Fossil Relatives and Evolutionary History." New York: Columbia University Press I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intyrictis
Intyrictis ("MacIntyre's weasel") is an extinct genus of placental mammals from extinct subfamily Didymictinae within extinct family Viverravidae, that lived in North America during early Paleocene. Phylogeny The phylogenetic relationships of genus ''Intyrictis'' are shown in the following cladogram:P. D. Gingerich and D. A. Winkler (1985"Systematics of Paleocene Viverravidae (Mammalia, Carnivora) in the Bighorn Basin and Clark's Fork Basin, Wyoming."Contributions from the Museum of Paleontology, University of Michigan 27(4):87-128S. Faurby, L. Werdelin, A. Antonelli (2019"Dispersal ability predicts evolutionary success among mammalian carnivores"Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, SE See also * Mammal classification * Didymictinae Didymictinae ("double weasels") is an extinct subfamily of mammals from extinct family Viverravidae, that lived from the early Palaeocene to the middle Eocene in North America and Europe. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viverravus
''Viverravus'' ("ancestor of ''Viverra''") is an extinct genus of placental mammals from extinct subfamily Viverravinae within extinct family Viverravidae, that lived in North America, Europe and Asia from the middle Paleocene to middle Eocene. Classification and phylogeny Taxonomy Phylogeny The phylogenetic relationships of genus ''Viverravus'' are shown in the following cladogram:P. D. Gingerich and D. A. Winkler (1985."Systematics of Paleocene Viverravidae (Mammalia, Carnivora) in the Bighorn Basin and Clark's Fork Basin, Wyoming."Contributions from the Museum of Paleontology, University of Michigan 27(4):87-128P. D. Polly (1997."Ancestry and Species Definition in Paleontology: A Stratocladistic Analysis of Paleocene-Eocene Viverravidae (Mammalia, Carnivora) from Wyoming."Contributions from the Museum of Paleontology, University of Michigan 30(1):1-53S. Faurby, L. Werdelin, A. Antonelli (2019."Dispersal ability predicts evolutionary success among mammalian carnivores"Departm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Didymictis
''Didymictis'' ("double weasel") is an extinct genus of placental mammals from extinct subfamily Didymictinae within extinct family Viverravidae, that lived in North America and Europe from the late Paleocene to middle Eocene. Description ''Didymictis'' is the only viverravid genus for which there are considerable postcranial remains. The genus was primarily terrestrial but at least partly cursorial, similar to a civets. ''Didymictis'' has an elongated and relatively large skull with small and low braincase and a long and narrow basicranial region. The occipital and sagittal crests are very high. The limbs are of moderate length with subdigitigrade and five-toed feet. The dentition () contrast those of basal carnivoraforms by the sharp differentiation between sectorial and tubercular dentition, the loss of the last molar and an elongated second molar, similar to the dentition in bears and raccoons. Comparing ''Didymictis'' to ''Vulpavus'', a much smaller and more agile carn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryanictis
''Bryanictis'' ("Bryan's weasel") is an extinct genus of placental mammals from extinct subfamily Didymictinae within extinct family Viverravidae, that lived in North America, from the early to late Paleocene. Phylogeny The phylogenetic relationships of genus ''Bryanictis'' are shown in the following cladogram:S. Faurby, L. Werdelin, A. Antonelli (2019"Dispersal ability predicts evolutionary success among mammalian carnivores"Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, SE See also * Mammal classification * Didymictinae Didymictinae ("double weasels") is an extinct subfamily of mammals from extinct family Viverravidae, that lived from the early Palaeocene to the middle Eocene in North America and Europe. Classification and phylogeny Classification * Subfam ... References Paleocene mammals of North America Viverravids Prehistoric placental genera {{paleo-mammal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Didymictinae
Didymictinae ("double weasels") is an extinct subfamily of mammals from extinct family Viverravidae, that lived from the early Palaeocene to the middle Eocene in North America and Europe. Classification and phylogeny Classification * Subfamily: †Didymictinae ** Genus: †'' Bryanictis'' *** †''Bryanictis microlestes'' *** †''Bryanictis paulus'' *** †''Bryanictis terlinguae'' ** Genus: †'' Didymictis'' *** †''Didymictis altidens'' *** †''Didymictis dellensis'' *** †''Didymictis leptomylus'' *** †''Didymictis protenus'' *** †''Didymictis proteus'' *** †''Didymictis vancleveae'' *** †''Didymictis'' sp. rquelinnes, Hainaut, Belgium ** Genus: †'' Intyrictis'' *** †''Intyrictis vanvaleni'' ** Genus: †'' Pristinictis'' *** †''Pristinictis connata'' ** Genus: †'' Protictis'' (paraphyletic genus) *** †''Protictis agastor'' *** †''Protictis haydenianus'' *** †''Protictis minor'' *** †''Protictis paralus'' *** †''Proticti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnivoramorpha
Carnivoramorpha ("carnivoran-like forms") is a clade of placental mammals that includes the modern order Carnivora and its extinct stem-relatives.Bryant, H.N., and M. Wolson (2004“Phylogenetic Nomenclature of Carnivoran Mammals.”''First International Phylogenetic Nomenclature Meeting''. Paris, Museum National d’Histoire Naturelle Classification and phylogeny Traditional classification * Clade: Carnivoramorpha basal clades to Carnivora, but without Creodonts] ** Order: Carnivora (carnivorans) *** Suborder: Caniformia ("dog-like" carnivorans) *** Suborder: Feliformia ("cat-like" carnivorans) *** ''Incertae sedis'': **** Genus: †''Palaeogale'' ** Superfamily: † Miacoidea *** Family: † Miacidae *** Family: † Viverravidae *** ''Incertae sedis'': **** †'' "Sinopa" insectivorus'' ** ''Incertae sedis'': *** Genus: †'' Ravenictis'' *** † Carnivoramorpha sp. (''UALVP 31176'') Revised classification Recent phylogenetic studies indicate that the superfamily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnivora
Carnivora is a monophyletic order of placental mammals consisting of the most recent common ancestor of all cat-like and dog-like animals, and all descendants of that ancestor. Members of this group are formally referred to as carnivorans, and have evolved to specialize in eating flesh. The order is the fifth largest order of mammals, comprising at least 279 species. Carnivorans live on every major landmass and in a variety of habitats, ranging from the cold polar regions to the hyper-arid region of the Sahara Desert to the open seas. They come in a very large array of different body plans in contrasting shapes and sizes. Carnivora can be divided into two subclades: the cat-like Feliformia and the dog-like Caniformia, which are differentiated based on the structure of their ear bones and cranial features. The feliforms include families such as the cats, the hyenas, the mongooses and the civets. The majority of feliform species are found in the Old World, though the cat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molar (tooth)
The molars or molar teeth are large, flat teeth A tooth ( : teeth) is a hard, calcified structure found in the jaws (or mouths) of many vertebrates and used to break down food. Some animals, particularly carnivores and omnivores, also use teeth to help with capturing or wounding prey, te ... at the back of the mouth. They are more developed in mammal, mammals. They are used primarily to comminution, grind food during mastication, chewing. The name ''molar'' derives from Latin, ''molaris dens'', meaning "millstone tooth", from ''mola'', millstone and ''dens'', tooth. Molars show a great deal of diversity in size and shape across mammal groups. The third molar of humans is sometimes vestigial. Human anatomy In humans, the molar teeth have either four or five cusp (dentistry), cusps. Adult humans have 12 molars, in four groups of three at the back of the mouth. The third, rearmost molar in each group is called a Third molar, wisdom tooth. It is the last tooth to appear, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleobiology Database
The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database (PBDB) originated in the NCEAS-funded Phanerozoic Marine Paleofaunal Database initiative, which operated from August 1998 through August 2000. From 2000 to 2015, PBDB received funding from the National Science Foundation. PBDB also received support form the Australian Research Council. From 2000 to 2010 it was housed at the National Center for Ecological Analysis and Synthesis, a cross-disciplinary research center within the University of California, Santa Barbara. It is currently housed at University of Wisconsin-Madison and overseen by an international committee of major data contributors. The Paleobiology Database works closely with the Neotoma Paleoecology Database, which has a similar intellectual history, but has focused on the Quaternary (with an emphasis on the late Pleistocene and Holoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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