[MM] Brachyzostrodon coupatezi
The Earliest-Known Stem Mammals
DESCRIBER Sigogneau-Russell, 1983
TIME Triassic Late
Rhaetian
CLASS Mammalia
SUBCLASS Incertae Sedis
ORDER Morganucodonta (Kermack, et al., 1973)
FAMILY Megazostrodontidae (Gow, 1986)
FOSSILSITE Keuper Formation, Saint-Nicolas-de-Port, Lorraine, France
INFO
Brachyzostrodon coupatezi (Sigogneau-Russell, 1983 ) > Brachyzostrodon major (Hahn et al., 1991) > Brachyzostrodon sp. (Hahn et al., 1991) > Brachyzostrodon sp. (Jenkins et al., 1994 )
All species of Brachyzostrodon are distinctly larger than any other species of Morganucodon, Erythrotherium and Megazostrodon.