’Symmetrodontans’

DESCRIBER    Patterson, 1955
TIME    Cretaceous Early
Aptian Albian
CLADE    Trechnotheria
CLASS    Mammalia
ORDER    Incertae Sedis
FAMILY    Spalacotheriidae
SUB FAMILY    Spalacolestinae
FOSSILSITE    Antlers Formation, Texas, United States
INFO
Type species by monotype. Another edentulous dentary fragment is probably referable to the species (Cifelli & Madsen, 1999), and a lower molar vaguely similar to the type is known from the Cloverly Formation, Montana (Jacobs et al., 1991)