The Earliest-Known Stem  Mammals

DESCRIBER    Young, 1982
FALL UNDER    Sinoconodon rigneyi
INFO

Sinoconodon rigneyi (Patterson & Olson, 1961) > Lufengoconodon changchiawaensis (Young, 1982) > Sinoconodon parringtoni (Young, 1982) and Sinoconodon yangi (Zhang & Cui, 1983)

All specimens of Sinoconodon are from localities in close geographic proximity and at the same stratigraphic level (Stratum 6, Luo & Wu, 1994,1995)