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Neoplagiaulacidae
Neoplagiaulacidae is a family of mammal within the extinct order Multituberculata. Fossil remains are known from the Upper Cretaceous through to the latest Eocene/early Oligocene. Representatives have been found in North America, Europe and Asia. They are the last multituberculates known.Karew Schumaker, Multituberculates from the Medicine Pole Hills Local Fauna (Chadronian) of Bowman County, North Dakota Neoplagiaulacinae (Ameghino 1890) has been seen as a sub-family within Ptilodontidae (Cope, 1887). More recent thinking has it as a family. Synonyms are Ectypodidae (Sloan & Van Valen 1965) and Ectypodontidae (Sloan & Van Valen 1965). Most fossils are restricted to teeth. The family is part of the suborder of Cimolodonta Cimolodonta is a taxon of extinct mammals that lived from the Cretaceous to the Eocene. They were some of the more derived members of the extinct order Multituberculata. They probably lived something of a rodent-like existence until their ... withi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptilodontoidea
Ptilodontoidea is a group of extinct mammals from the Northern Hemisphere. They were generally small, somewhat rodent-like creatures of the extinct order Multituberculata. Some of these genera boast a great many species, though remains are generally sparse. ''Ptilodus'' is among the best known, and there's a tendency to depict it as an analog of a squirrel. Upper Cretaceous remains are known from North America and Europe. Later representatives (Paleocene - Eocene) hail from North America, Europe and Asia. These were some of the last multituberculates, and they are within the suborder Cimolodonta. The superfamily is further divided into the following families: *Neoplagiaulacidae - 10 genera; * Ptilodontidae - 4 genera; *Cimolodontidae Cimolodontidae is a family of fossil mammals within the extinct order Multituberculata. Representatives are known from the Upper Cretaceous and Paleocene of North America. The family Cimolodontidae was named by Othniel Charles Marsh i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptilodontoids
Ptilodontoidea is a group of extinct mammals from the Northern Hemisphere. They were generally small, somewhat rodent-like creatures of the extinct order Multituberculata. Some of these genera boast a great many species, though remains are generally sparse. ''Ptilodus'' is among the best known, and there's a tendency to depict it as an analog of a squirrel. Upper Cretaceous remains are known from North America and Europe. Later representatives (Paleocene - Eocene) hail from North America, Europe and Asia. These were some of the last multituberculates, and they are within the suborder Cimolodonta. The superfamily is further divided into the following families: *Neoplagiaulacidae Neoplagiaulacidae is a family of mammal within the extinct order Multituberculata. Fossil remains are known from the Upper Cretaceous through to the latest Eocene/early Oligocene. Representatives have been found in North America, Europe and Asi ... - 10 genera; * Ptilodontidae - 4 genera; * C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xyronomys
''Xyronomys'' is an extinct genus of small mammals from the Paleocene of North America, with two described species. The genus lies within the extinct order Multituberculata within the suborder Cimolodonta and family Neoplagiaulacidae. The species ''Xyronomys swainae'' (J. K. Rigby, 1980) was found in Torrejonian (Paleocene)-age strata of Swain Quarry in Wyoming, United States. Represented by a couple of teeth, this genus was originally assigned to Eucosmodontidae. Kielan-Jaworowska and Hurum (2001, p. 406) refer it to Neoplagiaulacidae on the basis of its possession of microprismatic enamel, i.e. the tooth enamel is built up from small prisms. A second species ''Xyronomys robinsoni'' was found in Puercan (Lower Paleocene)-age strata of Colorado, USA and was named by Middleton and Dewar in 2004. Material assigned to this genus has also been reported from Rav W-1 in Saskatchewan Saskatchewan ( ; ) is a province in western Canada, bordered on the west by Alberta, on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neoplagiaulax
''Neoplagiaulax'' is a mammal genus from the Paleocene of Europe and North America. In the case of the latter continent, there may possibly be some slightly earlier, Upper Cretaceous material too. It existed in the age immediately following the extinction of the last dinosaurs. This animal was a member of the extinct order Multituberculata, lying within the suborder Cimolodonta and family Neoplagiaulacidae. The genus ''Neoplagiaulax'' ("new ''Plagiaulax''") was named by Lemoine V. in 1882. Species *''Neoplagiaulax annae'' (Vianey-Liaud M. 1986) has been found in Paleocene stratum, strata of Cernay-lès-Reims, Cernay, France. *''?Neoplagiaulax burgessi'' (Archibald J.D. 1982) has been found in Maastrichtian (Upper Cretaceous) strata of Hell Creek, USA. *''Neoplagiaulax copei'' (Lemoine V. 1885) has been found in Paleocene strata of Cernay, France. It has been cited as a possible descendant of ''N. hazeni''. *''Neoplagiaulax donaldorum'' (Scott C.S., Krause D.W. 2006) found in e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parectypodus
''Parectypodus'' (meaning "besides '' Ectypodus''") is an extinct genus of mammals that lived from Late Cretaceous (Maastrichtian) to Eocene time in North America. It is a member of the extinct order of Multituberculata, suborder Cimolodonta, family Neoplagiaulacidae. It was named by G.L. Jepsen in 1930. Species *''Parectypodus armstrongi'' (Johnston, P.A. & Fox, R.C., 1984). From the Puercan (Paleocene) Ravenscrag Formation, site Rav W-1, Saskatchewan, Canada. This specimen resides in the collection of the University of Alberta. *''Parectypodus foxi'' (Storer, J.E., 1991). This Maastrichtian (Late Cretaceous)-age species from the Frenchman Formation of Saskatchewan is estimated to have weighed about 80 g. *''Parectypodus laytoni'' (Jepsen, G.L., 1940; Sloan, R.E., 1966), also known as ''Ectypodus laytoni'' (Jepsen 1940). Remains are known from the Lower Tiffanian (Middle-Late Paleocene) Princeton Quarry, Wyoming (United States). This species has been cited as a descendant of ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cernaysia
''Cernaysia'' is an extinct genus of mammal from the Paleocene of France and the United States. It existed in the age immediately following the extinction of the last dinosaurs. This animal was a member of the extinct order Multituberculata within the suborder Cimolodonta and family Neoplagiaulacidae. The genus ''Cernaysia'' ("from Cernay") was named by Vianey-Liaud M. in 1986 based on two species. It has also been known as ''Carnaysia''. Fossil remains of the species ''Cernaysia davidi'' (Vianey-Liaud M. 1986) were found in Puercan (Lower Paleocene) strata of the San Juan Basin of New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ke ..., (United States). Remains of the species ''Cernaysia manueli'' (Vianey-Liaud M. 1986) were found in Upper Paleocene strata from Cernay, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multituberculata
Multituberculata (commonly known as multituberculates, named for the multiple tubercles of their teeth) is an extinct order of rodent-like mammals with a fossil record spanning over 130 million years. They first appeared in the Middle Jurassic, and reached a peak diversity during the Late Cretaceous and Paleocene. They eventually declined from the mid Paleocene onwards, disappearing from the known fossil record in the late Eocene. They are the most diverse order of Mesozoic mammals with more than 200 species known, ranging from mouse-sized to beaver-sized. These species occupied a diversity of ecological niches, ranging from burrow-dwelling to squirrel-like arborealism to jerboa-like hoppers. Multituberculates are usually placed as crown mammals outside either of the two main groups of living mammals—Theria, including placentals and marsupials, and MonotremataAgustí-Antón 2002, pp 3-4—but usually as closer to Theria than to monotremes. They are considered to be clo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanclomys
''Xanclomys'' is a small mammal from the Paleocene of North America. It was a genus within the extinct order Multituberculata within the suborder Cimolodonta and family Neoplagiaulacidae. The genus ''Xanclomys'', named by Rigby J.K. in 1980, is also known as ''Xancolomys''. The identification is based on a single species, ''Xanclomys mcgrewi''. Fossil remains were found in the Torrejonian (Paleocene)-age strata of the Swain Quarry in Wyoming (U.S. The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...). Affinities are uncertain. There's perhaps a second, unnamed species. References * Rigby (1980), Swain Quarry of the Fort Union Formation, Middle Paleocene (Torrejonian), Carbon County, Wyoming: geologic setting and mammalian fauna. Evolutionary Monographs, 3, vi+179pp. * Kielan-J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mimetodon
''Mimetodon'' is a small mammal from the Paleocene of North America and perhaps Europe. It was a member of the extinct order Multituberculata within the suborder Cimolodonta and family Neoplagiaulacidae. The genus ''Mimetodon'' was named by Jepsen G.L. in 1940. It has also been known as '' Ectypodus'' (partly); '' Mesodma'' (partly); ''Neoplagiaulax'' (partly). McKenna and Bell (1997) lists possible material from the Upper Paleocene(?) of Europe. Species The species ''Mimetodon churchilli'' was named by Jepsen G.L. in 1940. Remains were found in the Tiffanian (Middle Paleocene)-age strata of Princeton Quarry in Wyoming (United States). The holotype is in the collection of the Peabody Museum of Natural History at Yale University. The species ''Mimetodon krausei'' was named by Sloan R.E. in 1981. Remains were found in the Puercan (Lower Paleocene)-age strata of the San Juan Basin of New Mexico (United States). This holotype's also in the collection of the Peabody Museum, Yale. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesodmops
''Mesodmops'' is a genus of small mammal from the Eocene of China. It was a late member of the extinct order of Multituberculata. It's within the suborder of Cimolodonta and family Neoplagiaulacidae Neoplagiaulacidae is a family of mammal within the extinct order Multituberculata. Fossil remains are known from the Upper Cretaceous through to the latest Eocene/early Oligocene. Representatives have been found in North America, Europe and Asi .... The genus was named by Y. Tong and T. Wang in 1994. The primary species is ''Mesodmops dawsonae'', also named by Tong and Wang. It has been found in the Lower Eocene of the Wutu Basin in Shandong, China. References Tong & Wang (1994), ''A new neoplagiaulacid multituberculate (Mammalia) from the lower Eocene of Wutu Basin, Shandong''. Vertebrata PalAsiatica, 32, p. 275-284. (Chinese with summary in English.) Kielan-Jaworowska Z. and Hurum J.H. (2001), ''Phylogeny and Systematics of multituberculate mammals''. Paleontology 44, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesodma
''Mesodma'' is an extinct genus of mammal, a member of the extinct order Multituberculata within the suborder Cimolodonta, family Neoplagiaulacidae. It lived during the upper Cretaceous and Paleocene Periods of what is now North America. The earliest definitive record is from the late Santonian stage strata of the Straight Cliffs Formation. A single premolar tooth from the lower Cenomanian stage strata of the Cedar Mountain Formation has been tentatively assigned to this genus based on its similarity, but its describers noted that it is unlikely that ''Mesodma'' lived during that time. Species *''Mesodma ambigua'' **Place: Mantua Lentil, Wyoming (USA) **Age: Maastrichtian-Puercan, Upper Cretaceous - Paleocene **Weight: about 55 g *''Mesodma formosa'' **Place: Hell Creek and Frenchman Formation, USA & Canada. This species is possibly also known from Utah. **Age: Maastrichtian-Puercan (Upper Cretaceous to the Paleocene). **Weight: about 30 g *''Mesodma hensleighi'' **Place: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krauseia
''Krauseia'' is an extinct genus of small mammal from the Paleocene of North America. It was a member of the extinct order Multituberculata and is within the suborder of Cimolodonta, family Neoplagiaulacidae. The genus was nemed by Vianey-Liaud M. in 1986, and has also partly been known under the name ''Parectypodus''. The species ''Krauseia clemensi'' was named by Sloan R.E. in 1981, and is klso known as ''Parectypodus clemensi''. Fossil remains of members of this species have been found in the Torrejonian (Paleocene)-age Stratum, strata of the San Juan Basin of New Mexico and Wyoming. An approximate weight comparison for ''P. clemensi'' is the weight of one standard mouse, around 25 g. References * Sloan (1981), "Systematics of Paleocene multituberculates from the San Juan Basin, New Mexico", p. 127-160, in Lucas et al. (eds), ''Advances in San Juan Basin paleontology''. University of New Mexico Press, Albuquerque. * Kielan-Jaworowska Z. & Hurum J.H. (2001), "Phylogeny ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
