Metatherians

DESCRIBER    Russel, 1952
TIME    Cretaceous Late
Campanian Maastrichtian
CLASS    Mammalia
COHORT    Marsupialia
SUPERORDER  ’Ameridelphia’
ORDER    Didelphimorphia
FAMILY    ’Alphadontidae’
FOSSILSITE    Type Judithian; Hill County, Judith River Formation, Montana, US
Foremost Formation, Oldman Formation, Dinosaur Park Formation, Alberta, Canada
INFO

Turgidodon praesagus (Russel, 1952) > Turgidodon lillegraveni (Cifelli, 1990) > Turgidodon madseni (Cifelli, 1990) > Turgidodon parapraesagus (Rigby & Wolberg, 1987) > Turgidodon petaminis (Storer, 1991) > Turgidodon rhaister (Clemens, 1966) > Turgidodon russelli (Fox, 1979) > Turgidodon sp. (Cifelli, 1990; Eaton, 1993)

Protalphadon was erected by Cifelli, 1990 to include species previously placed in Alphadon.