Eutherians

DESCRIBER    Simpson, 1927
TIME    Cretaceous Late
Campanian Maastrichtian
CLASS    Mammalia
INFRACLASS    Eutheria
MAGNORDER    Epitheria
SUPERORDER    Insectivora
ORDER    Lepticida
FAMILY    Gypsonictopsidae
FOSSILSITE    Type Lance; Black Butte Station; Hewitt\'s Foresight, Lance Formation, Wyoming, US
Hell Creek; Claw Butte, Hell Creek Formation, Montana, US
Eureka Quarry, Joe Painter Quarry, Hell Creek Formation, South Dakota, US
Red Owl, Fox Hills Formation, South Dakota, US
INFO

Gypsonictops hypoconus (Simpson, 1927 ) > Gypsonictops illuminatus (Lillegraven, 1969) > Gypsonictops lewisi (Sahni, 1972) > Gypsonictops clemensi (Rigby and Wolberg, 1987) > Gypsonictops sp. (Clemens, 1973, 1995; Sloan and Russell, 1974; Carpenter, 1979; Clemens et al. 1979; Fox, 1989; mCifelli, 1990; Everle and Lillegraven, 1998; Hunter and Archibald, 2002)