Allotherians

DESCRIBER    Lillegraven, 1969
TIME    Cretaceous Late
Campanian Maastrichtian
CLASS    Mammalia
SUBCLASS    Allotheria
ORDER    Multituberculata
SUBORDER    Cimolodonta
SUPERFAMILY    Ptilodontoidae
FAMILY    Neoplagiaulacidae
FOSSILSITE    

Kaiparowits Formation, Paunsaugunt Platau, Utah, United States
Lance Formation, Type Lance; Black Butte Station; Hewitt\'s Foresight, Wyoming, United States
Hell Creek Formation, Claw Butte; Blacktail Creek, Hell Creek, Montana, United States
Hell Creek Formation, Joe Painter Quarry, South Dakota, United States
Scollard Formation, Trochu, Alberta, Canada
Frenchman Formation, Gryde; Saskatchewan, Canada
Hell Creek Formation, Eureka Quarry; South Dakota, United States [Mesodma cf hensleighi]
North Horn Formation, Utah, United States[Mesodma cf hensleighi]
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)