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 GL, 1940
Aka: Ectypodus (partly); Mesodma (partly); Neoplagiaulax (partly)
McKenna & Bell (1997) lists material from the Upper Paleocene? of Europe. Species: Mimetodon churchilli Jepsen GL, 1940
Place: Princeton Quarry, Wyoming, USA
Age: Tiffanian (Middle Paleocene)
The holotype is in the collection of the Peabody Museum, Yale.
Species: Mimetodon krausei Sloan RE, 1981
Place: San Juan Basin, New Mexico, USA
Age: Puercan, Lower Paleocene
Remarks: This holotype's also in the collection of the Peabody Museum, Yale.
Reference: 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, Alberquerque.
Species: ? Mimetodon nanophus (Holtzman, 1978)
Aka: Neoplagiaulax nanophus Holtzman, 1978
Place: Tongue River Formation, North Dakota, USA
Age: Middle-Upper Paleocene
Might be the same as M. silberlingi.
Species: Mimetodon silberlingi (Simpson GG, 1935) Schiebout, 1974
Aka: Ectypodus? silberlingi Simpson, 1935d; Mesodma silberlingi Van Valen & Sloan, 1966; ?M. nanophus
Place: Gidley Quarry, Montana & Wyoming & N Dakota & Alberta
Country: USA & Canada
Age: Torrejonian-Tiffanian (Middle Paleocene)
Weighed about 20g.
References Holtzman (1978), NDGS Reports Invest. 65. Simpson (1935), New Paleocene mammals from the Fort Union of Montana. Proc. US Nation. Museum 83, p.221-244. Jepsen (1940), Paleocene faunas of the Polecat Bench formation, Park County, Wyoming. Pro. Amer. Philos. Soc, 83, p.217-340, 21 figs., 5pls. Kielan-Jaworowska Z & Hurum JH (2001), Phylogeny and Systematics of multituberculate mammals. Paleontology 44, p.389-429.
McKenna MC & Bell SK, (1997), Classification of Mammals Above the Species Level. Columbia University Press. Much of this information has been derived from [1] MESOZOIC MAMMALS: Ptilodontoidea, an Internet directory.
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