’Tribotherians’ (Stem Boreasphenidans)

DESCRIBER    Jacobs, Winkler & Murray, 1989
TIME    Cretaceous Early
Albian
CLASS    Mammalia
SUBCLASS    Boreasphenida
ORDER    Aegialodontidae
FAMILY    Picopsidae
FOSSILSITE    Paluxy Formation, Texas, US
INFO

Type species by monotype. Poorly known genus represented only by the holotype of the typespecies (incomlete left upper molar).