''Clemensodon'' is a genus of extinct

mammal Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or ...

from the Upper Cretaceous of

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

. It lived during the end of the Mesozoic, also known as the "age of the dinosaurs". It was a member of the extinct order of Multituberculata within the suborder of Cimolodonta and family

Eucosmodontidae Eucosmodontidae is a poorly preserved family of fossil mammals within the extinct order Multituberculata. Representatives are known from strata dating from the Upper Cretaceous through the Lower Eocene of North America, as well as the Paleo ...

. Fossil remains are restricted to teeth. The main species of Clemensodon is ''Clemensodon megaloba'', however, this species is also known as a part of ''

Kimbetohia ''Kimbetohia'' is a genus of mammal belonging to the extinct order Multituberculata. It lived from the Upper Cretaceous to the Paleocene period in the United States. Taxonomy Two species are known. The type species, ''Kimbetohia campi'', has bee ...

campi''. Fossils have been found in the Lance Formation of Wyoming (United States). They age from the Maastrichtian division of the Upper Cretaceous. The species is based on a reassessment of a couple of ''Kimbetohia'' teeth, but not the entire species or genus. The assignment of this taxon to Eucosmodontidae is tentative. Evidence from the size and number of serrations of certain teeth and its enamel microstructure indicates that ''Clemensodon'' is either a derived taeniolabdoid or a primitive ptilodontoid. Determination of which of these two alternatives is correct must await the recovery of teeth from other positions.

References

* Most of this information has been derived fro

''MESOZOIC MAMMALS;

, Microcosmodontidae and Taeniolabidoidea, an Internet directory''. * Kielan-Jaworowska Z. and Hurum J.H. (2001), "Phylogeny and Systematics of multituberculate mammals". ''Paleontology'' 44, p. 389-429. * Krause (1992), "''Clemensodon megaloba'', a new genus and species of Multituberculata (Mammalia) from the Upper Cretaceous Type Lance Formation, Powder River Basin, Wyoming". ''PaleoBios'' 14(2), p. 1-8. {{Taxonbar, from=Q5131277 Cimolodonts Late Cretaceous mammals of North America Extinct mammals of North America Fossil taxa described in 1992 Prehistoric mammal genera