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Neoliotomus
Neoliotomus is a genus of North American mammal from the Paleocene. It existed in the age immediately following the extinction of the last dinosaurs and was a member of the extinct order Multituberculata. It lies within the suborder Cimolodonta and is a member of the superfamily Ptilodontoidea. Other than that, its affinities are somewhat unclear. The genus Neoliotomus ("new Liotomus") (Jepsen GL, 1930) is also known as Eucosmodon (partly). The species Neoliotomus conventus (Jepsen GL, 1930) is known from the Clarkforkian (Paleocene) of Wyoming, Fort Union Formation, Montana and Colorado (USA). This is a fairly large multituberculate of around 1.9 kg. The holotype is in the Peabody Museum, Yale. Species: Neoliotomus ultimus (Granger W & Simpson GG, 1928)
Also known as Eucosmodon ultimus (Granger & Simpson, 1928)
Place: Age: Clarkforkian (Paleocene) of Wyoming and Colorado. This species is known from a fair number of locations. It is another large multi, which weighed perhaps 2 kilos. References - Jepsen (1930), "New vertebrate fossils from the Lower Eocene of the Bighorn Basin, Wyoming." Proc. Amer. Philos. Soc. 69, p.117-131, 4 pls.
- Kielan-Jaworowska Z & Hurum JH (2001), "Phylogeny and Systematics of multituberculate mammals." Paleontology 44, p.389-429.
- Much of this information has been derived from MESOZOIC MAMMALS; Ptilodontoidea, an Internet directory.
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