Liotomus
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Liotomus is a genus of extinct mammal from the Paleocene of Europe and North America, and thus lived just after the "age of the dinosaurs. It was a member of the extinct order Multituberculata, lying within the suborder Cimolodonta and possibly the family Cimolodontidae.
The genus Liotomus was named by Cope E.D. 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).
Species
Species: Liotomus marshi (Lemoine, 1882) Cope E.D. 1884
It has also been known as Neoctenacodon marshi and Neoplagiaulax marshi.
Remains are known from the Upper Paleocene of Cernay, France. Has been cited as a descendant of Anconodon gidleyi.
Species: Liotomus vanvaleni
Aka: Parectypodus vanvaleni (Sloan RE, 1981)
Age: Puercan, Lower Paleocene
Place: San Juan Basin, New Mexico
Liotomus sinclairi, which also seems to have been known as Ptilodus sinclairi, has probably since become Parectypodus sinclairi.
References
- 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, Alberquerque.
- 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 (http://home.arcor.de/ktdykes/ptilodon.htm), an Internet directory.