’Symmetrodontans’

DESCRIBER    Clemens & van Lees, 1971
TIME    Cretaceous Early
Valanginian
CLADE    Trechnotheria
CLASS    Mammalia
ORDER    Incertae Sedis
FAMILY    Spalacotheriidae
FOSSILSITE    Grinstead Clay, Paddockhurst Park, England, Britain
INFO
Spalacotherium tricuspidens (Owen, 1854) [including Peralestes longirostris] > Spalacotherium evansae (Ensom & Sigogneau-Russell, 2000) > Spalacotherium henkeli (Krebs, 1985) > Spalacotherium taylori (Clemens & van Lees, 1971) > Spalacotherium sp.