[MM] Brachyzostrodon sp.
The Earliest-Known Stem Mammals
DESCRIBER Hahn et al., 1991
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 )
DESCRIBER Jenkins et al., 1994
TIME Triassic Late
Norian
CLASS Mammalia
SUBCLASS Incertae Sedis
ORDER Morganucodonta (Kermack, et al., 1973)
FAMILY Megazostrodontidae (Gow, 1986)
FOSSILSITE Flemming Fjord Formation, Jameson Island, Greenland
INFO
Brachyzostrodon coupatezi (Sigogneau-Russell, 1983 ) > Brachyzostrodon major (Hahn et al., 1991) > Brachyzostrodon sp. (Hahn et al., 1991) > Brachyzostrodon sp. (Jenkins et al., 1994 )
Incomplete morganucodontan material. The framentary nature of the specimen (half of a molar) leaves positive identification in question.