’Tribotherians’ (Stem Boreasphenidans)

DESCRIBER    Cifelli, 1994
TIME    Cretceous Late
Campanian
CLASS    Mammalia
SUBCLASS    Boreasphenida
ORDER    Aegialodontidae
FAMILY    Incertae Sedis
FOSSILSITE    Aguja Formation, Texas, US
INFO

Type species by monotype. represented byseveral lowar molars, and tentatively assigned two last upper molars.