’Symmetrodontans’

DESCRIBER    Hu et al., 1997
TIME    Cretaceous Early
Barremian
CLADE    Trechnotheria
CLASS    Mammalia
ORDER    Incertae Sedis
FAMILY    Spalacotheriidae
FOSSILSITE    Yixian Formation, Liaoning Province, China
INFO
Z. quinquecupidens is the most completely known of all \"Symmetrodontans\" the holotype includes the dentition and much of the skull and skeleton (Hu, et al., 1997, 1998). Zhangheotherium possibly represents the sister taxon to all other Spalacotheriidae (Cifelli & Madsen, 1999)