Liotomus is a genus of extinct mammal from the Paleocene epoch (early Cenozoic era). It lived in Europe and North America, and was a member of the extinct order Multituberculata, lying within the suborder Cimolodonta and possibly the family Cimolodontidae.
The genus Liotomus was named by E. D. Cope in 1884. It has also been known as Neoctenacodon (Lemoine 1891); Neoplagiaulax (partly); and Parectypodus (partly). This genus is sometimes placed within family Eucosmodontidae (Jepsen 1940).
- Described by: Lemoine, 1882; Cope, E.D., 1884
- Alternate names: Neoctenacodon marshi and Neoplagiaulax marshi)
- L. marshi remains are known from the Upper Paleocene of Cernay, France.
- L. marshi has been cited as a descendant of Anconodon gidleyi.
- Alternate names: Parectypodus vanvaleni (Sloan RE, 1981), Ptilodus sinclairi)
- L. vanvaleni remains are known from the San Juan Basin, New Mexico.
- Cope (1884), "The Tertiary Marsupialia." American Naturalist, 18, p. 686-697.
- Sloan (1981), "Systematics of Paleocene multituberculates from the San Juan Basin, New Mexico," pp. 127–160, in Lucas et al. (eds), "Advances in San Juan Basin paleontology." University of New Mexico Press, Albuquerque.
- 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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