[MM] Mesodma formosa
Allotherians
DESCRIBER Marsh, 1889
TIME Cretaceous Late Paleocene
Campanian Maastrichtian
CLASS Mammalia
SUBCLASS Allotheria
ORDER Multituberculata
SUBORDER Cimolodonta
SUPERFAMILY Ptilodontoidae
FAMILY Neoplagiaulacidae
FOSSILSITE
El Gallo Formation, Ek Gallo, Baja California, Mexico [Mesodma cf. formosa]
Wahweap Formation, Utah, United States [Mesodma cf. formosa]
Kaiparowits Formation, Kaiparowits Plateau; Paunsaugunt Platau, Utah, United States
Lance Formation, Type Lance; Black Butte Station; Hewitt\'s Foresight, Wyoming, United States
? Lance Formation, Dumbbell Hill, Wyoming, United States
Hell Creek Formation, Claw Butte; Blacktail Creek, Montana, United States
Hell Creek Formation, Claw Butte; Hell Creek, Montana, United States [Mesodma cf. formosa]
Hell Creek Formation, Eureka Quarry; Joe Painter Quarry, South Dakota, United States
Fox Hills Formation, Red Owl, South Dakota, United States
Scollard Formation, Trochu, Alberta, Canada
Frenchman Formation, Gryde; Saskatchewan, Canada
Kirtland Formation, Alamo Wash , New Mexico, United States
FALL UNDER Mesodma ambigua
INFO
Mesodma ambigua (Jensen, 1940 ) > Mesodma formosa (Marsh, 1889 ) > Mesodma garfieldensis (Archibald, 1982) > Mesodma hensleighi (Lillegraven, 1969) > Mesodma primaeva (Lambe, 1902 ) > Mesodma senecta (Fox, 1971) > Mesodma thompsoni (Clemens, 1963) > Mesodma sp. (Clemens, 1963; Fox, 1971; Novacek & Clemens, 1977; Armstrong-Ziegler, 1978; Archibald, 1982 and others)