Allotherians

DESCRIBER    Trofimov, 1980
TIME    Cretaceous Early
?Aptian ?Albian
CLASS    Mammalia
SUBCLASS    Allotheria
ORDER    Multituberculata
SUBORDER    Incertae Sedis
FAMILY    Arginbaataridae
FOSSILSITE    Hovoor Beds, Gobi Dessert, Mongolia
INFO
Type genus by mono type.Differ from all multiberculates (and all other mammals) in having a very large P4 with limited enamel.