Mesodma

Updated on Dec 08, 2024

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Kingdom Animalia Class Mammalia Superfamily Ptilodontoidea Rank Genus		Phylum Chordata Order Multituberculata Family Neoplagiaulacidae
Similar Cimexomys, Meniscoessus, Cimolomys, Ptilodontoidea, Neoplagiaulacidae

Mesodma is an extinct genus of mammal, a member of the extinct order Multituberculata within the suborder Cimolodonta, family Neoplagiaulacidae. It lived during the upper Cretaceous and Paleocene Periods of what is now North America.

Species

Mesodma ambigua

Place: Mantua Lentil, Wyoming (USA)

Age: Maastrichtian-Puercan, Upper Cretaceous - Paleocene

Weight: about 55 g

Mesodma formosa

Place: Hell Creek and Frenchman Formation, USA & Canada. This species is possibly also known from Utah.

Age: Maastrichtian-Puercan (Upper Cretaceous to the Paleocene).

Weight: about 30 g

Mesodma hensleighi

Place: Hell Creek Formation in the U.S. and in Saskatchewan, Canada.

Age: Campanian (Upper Cretaceous).

Weight: around 15 g

Mesodma primaeva

Place: Montana and Wyoming

Age: Campanian (Upper Cretaceous – Lower Paleocene)

Mesodma pygmaea

Place: Gidley Quarry, Montana, as well as Wyoming and Alberta, Canada

Age: Torrejonian-Tiffanian (Middle Paleocene).

Weight: about 8 g

Mesodma senecta

Age: Campanian (Upper Cretaceous)

Weight: about 50 g

Mesodma thompsoni (=M. garfieldensis)

Place: St Mary River Formation & Montana and Wyoming of the USA and Canada

Age: Maastrichtian-Puercan, Upper Cretaceous - Paleocene

Weight: about 55 g

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