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Stylinodontidae
Taeniodonta ("banded teeth") is an extinct early group of cimolestid mammals known from the Maastrichtian to the Eocene. Taeniodonts evolved quickly into highly specialized digging animals, and varied greatly in size, from rat-sized to species as large as a bear. Later species developed prominent front teeth and huge claws for digging and rooting. Some genera, like '' Stylinodon'', had ever-growing teeth. Two families belong to this group, Stylinodontidae and Conoryctidae. They were endemic to North America. The scarcity of taeniodont fossils can be explained by the fact that these animals probably lived in dry or arid climates unconductive to fossilization. Taeniodonts are unambiguously Eutherians, and part of Cimolesta; ''Cimolestes'' is the immediate outgroup to Taeniodonta. Taxonomy and phylogeny From Thomas E. Williamson and Stephen L. Brusatte (2013): * Order Cimolesta :* Suborder Taeniodonta ::*'' Alveugena'' ::*''Schowalteria'' ::* '' Onychodectes'' ::* Family Cono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stylinodontidae
Taeniodonta ("banded teeth") is an extinct early group of cimolestid mammals known from the Maastrichtian to the Eocene. Taeniodonts evolved quickly into highly specialized digging animals, and varied greatly in size, from rat-sized to species as large as a bear. Later species developed prominent front teeth and huge claws for digging and rooting. Some genera, like '' Stylinodon'', had ever-growing teeth. Two families belong to this group, Stylinodontidae and Conoryctidae. They were endemic to North America. The scarcity of taeniodont fossils can be explained by the fact that these animals probably lived in dry or arid climates unconductive to fossilization. Taeniodonts are unambiguously Eutherians, and part of Cimolesta; ''Cimolestes'' is the immediate outgroup to Taeniodonta. Taxonomy and phylogeny From Thomas E. Williamson and Stephen L. Brusatte (2013): * Order Cimolesta :* Suborder Taeniodonta ::*'' Alveugena'' ::*''Schowalteria'' ::* '' Onychodectes'' ::* Family Cono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectoganus
''Ectoganus'' is a fossil genus of mammals belonging to the family Stylinodontidae. The species of this genus are found in Northern America. Species: * ''Ectoganus bighornensis'' Schoch, 1981 * ''Ectoganus copei'' Schoch, 1981 * ''Ectoganus gliriformis ''Ectoganus'' is a fossil genus of mammals belonging to the family Stylinodontidae. The species of this genus are found in Northern America. Species: * ''Ectoganus bighornensis'' Schoch, 1981 * ''Ectoganus copei ''Ectoganus'' is a fossil ge ...'' Cope, 1874 References {{Taxonbar, from=Q22443087 Cimolestans Prehistoric mammal genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schowalteria
''Schowalteria'' is a genus of extinct mammal from the Cretaceous of Canada. It is the earliest known representative of Taeniodonta, a specialised lineage of non-placental eutherian mammals otherwise found in Paleocene and Eocene deposits. It is notable for its large size, being among the largest of Mesozoic mammals, as well as its speciation towards herbivory, which in some respects exceeds that of its later relatives. Description Currently, ''Schowalteria'' is considered to be a monotypic genus, with only one species, ''S. clemensi''. It is known from only one skull. ''Schowalteria'' shares some speciations with later taeniodonts, namely similar canine and incisor morphology, similar facial proportions and zygomatic arch construction, though unlike them its occlusal surface is worn nearly completely flat, and the wear facet completely encompasses the paracone and metacone, leaving only an outline of the buccal side of the bases of these cusps remaining, differing radically fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stylinodon
''Stylinodon'' is an extinct genus of taeniodont mammal, and is the best known, and last genus of taeniodonts, lived some 45 million years ago during middle Eocene in North America. The skull suggests it had a blunt face, and a very short snout. Species ranged in size from pigs to leopards, reached a body mass of up to . Its canines had developed into huge, incisor-like root-less teeth. ''Stylinodons molars were covered in enamel and continued growing throughout its life. Most likely, it fed on rough roots and tubers. References External linksPhotograph of skull at Utah Field House of Natural History Museum, at Vernal, Utah Vernal, the county seat and largest city in Uintah County is in northeastern Utah, approximately east of Salt Lake City and west of the Colorado border. As of the 2010 census, the city population was 9,089. The population has since grown to ... Cimolestans Eocene mammals of North America Fossil taxa described in 1874 Prehistoric mammal ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cimolestes
''Cimolestes'' (from Ancient Greek , 'chalk robber') is a genus of early eutherians with a full complement of teeth adapted for eating insects and other small animals. Paleontologists have disagreed on its relationship to other mammals, in part because quite different animals were assigned to the genus, making ''Cimolestes'' a Evolutionary grade, grade taxon of animals with similar features rather than a genus of Monophyly, closely related ones. Fossils have been found in North America, South America, Europe and Africa. ''Cimolestes'' first appeared during the Late Cretaceous of North America. According to some paleontologists, ''Cimolestes'' died out at the start of the Paleocene, while others report the genus from the early Eocene. Most species have been described from teeth and isolated fragments. One complete articulated skeleton provisionally assigned to ''Cimolestes'' has been found. It shows a small, agile, tree-dwelling predator with long toes for grasping branches and a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psittacotherium
''Psittacotherium'' (meaning "parrot beast") is an extinct genus of taeniodont from the Paleocene of North America. With a weight of about and a length over , it had similar size of a large dog. References *''Mammoths, Sabertooths, and Hominids'' by Jordi Agusti and Mauricio Anton *''The Beginning of the Age of Mammals'' by Kenneth D. Rose *''Classification of Mammals'' by Malcolm C. McKenna and Susan K. Bell *''Evolution of Herbivory in Terrestrial Vertebrates: Perspectives from the Fossil Record'' by Hans-Dieter Sues External links''Psittacotherium''in the 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 Pale ... Cimolestans Paleocene mammals Paleocene genus extinctions Paleocene mammals of North America Fossil taxa described in 1882 Prehistoric ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conoryctella
''Conoryctella'' was a genus of taeniodont Taeniodonta ("banded teeth") is an extinct early group of Cimolesta, cimolestid mammals known from the Maastrichtian to the Eocene. Taeniodonts evolution, evolved quickly into highly specialized digging animals, and varied greatly in size, from r ... cimolestans. References {{Reflist Cimolestans Prehistoric mammal genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
