Stylinodontinae

picture info	Stylinodontinae Stylinodontinae ("teeth with pilar-like fibers") is an extinct subfamily of mammals from extinct family Stylinodontidae, that lived in North America from the early Paleocene to middle Eocene. Taxonomy and phylogeny Taxonomy * Subfamily: †Stylinodontinae Tribe: † Ectoganini * Genus: †''Ectoganus'' ** †''Ectoganus bighornensis'' †''Ectoganus copei'' †''Ectoganus gliriformis'' †''Ectoganus lobdelli'' Tribe: † Psittacotheriini * Genus: †''Psittacotherium'' †''Psittacotherium multifragum'' Tribe: †Stylinodontini * Genus: †''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 snou ...'' †''Stylinodon inexplicatus'' †''Stylinodon mirus'' Phylogeny References Paleocene mamma ... [...More Info...] [...Related Items...] OR:** [Wikipedia] [Google] [Baidu]
picture info	Paleocene The Paleocene, ( ) or Palaeocene, is a geological epoch that lasted from about 66 to 56 million years ago (mya). It is the first epoch of the Paleogene Period in the modern Cenozoic Era. The name is a combination of the Ancient Greek ''palaiós'' meaning "old" and the Eocene Epoch (which succeeds the Paleocene), translating to "the old part of the Eocene". The epoch is bracketed by two major events in Earth's history. The K–Pg extinction event, brought on by an asteroid impact and possibly volcanism, marked the beginning of the Paleocene and killed off 75% of living species, most famously the non-avian dinosaurs. The end of the epoch was marked by the Paleocene–Eocene Thermal Maximum (PETM), which was a major climatic event wherein about 2,500–4,500 gigatons of carbon were released into the atmosphere and ocean systems, causing a spike in global temperatures and ocean acidification. In the Paleocene, the continents of the Northern Hemisphere were still connected v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Palaeoryctidae Palaeoryctidae or Palaeoryctoidea ("old/stony digger", from Greek: ὀρύκτης, ''oryctes'') is an extinct group of relatively non-specialized non-placental eutherian mammals that lived in North America during the late Cretaceous and took part in the first placental evolutionary radiation together with other early mammals such as the leptictids. Some sources classified the Palaeoryctidae as a superfamily. Description From a near-complete skull of the genus '' Palaeoryctes'' found in New Mexico, it is known that palaeoryctids were small, shrew-like insectivores with an elongated snout similar to that of the Lepticids. However, in contrast to the latter, little is known about palaeoryctids postcranial anatomy (the skeleton without the skull). Where the leptictids were short-lived, the paleoryctids seem to have been ancestors of Eocene species. While their dental morphology still indicate a mostly insectivorous diet, it, to some extent, also relate to Eocene carnivores such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Paleocene Mammals The Paleocene, ( ) or Palaeocene, is a geological epoch that lasted from about 66 to 56 million years ago (mya). It is the first epoch of the Paleogene Period in the modern Cenozoic Era. The name is a combination of the Ancient Greek ''palaiós'' meaning "old" and the Eocene Epoch (which succeeds the Paleocene), translating to "the old part of the Eocene". The epoch is bracketed by two major events in Earth's history. The K–Pg extinction event, brought on by an asteroid impact and possibly volcanism, marked the beginning of the Paleocene and killed off 75% of living species, most famously the non-avian dinosaurs. The end of the epoch was marked by the Paleocene–Eocene Thermal Maximum (PETM), which was a major climatic event wherein about 2,500–4,500 gigatons of carbon were released into the atmosphere and ocean systems, causing a spike in global temperatures and ocean acidification. In the Paleocene, the continents of the Northern Hemisphere were still connected v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Stylinodon MirusDB24 ''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]
	Psittacotherium MultifragumDB24 ''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 Paleo ... Cimolestans Paleocene mammals Paleocene genus extinctions Paleocene mammals of North America Fossil taxa described in 1882 Prehistoric ... [...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 fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Taeniodonta 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 Eutheria Eutheria (; from Greek , 'good, right' and , 'beast'; ) is the clade consisting of all therian mammals that are more closely related to placentals than to marsupials. Eutherians are distinguished from noneutherians by various phenotypic t ...ns, and part of Cimolesta; '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]