[MM] Morganucodon sp.
The Earliest-Known Stem Mammals
DESCRIBER Jenkins et al., 1983
TIME Jurassic Early
’Liassic’ ?Sinemurian
CLASS Mammalia
SUBCLASS Incertae Sedis
ORDER Morganucodonta (Kermack, et al., 1973)
FAMILY Morganucodontidae (Kühne, 1958)
FOSSILSITE Kayenta Formation, Gold Springs, Arizona, United States
FALL UNDER Morganucodon watsoni