[MM] Morganucodon watsoni
The Earliest-Known Stem Mammals
DESCRIBER Kühne, 1949
TIME Triassic Late, Jurassic Early, Jurassic Middle
CLASS Mammalia
SUBCLASS Incertae Sedis
ORDER Morganucodonta (Kermack, et al., 1973)
FAMILY Morganucodontidae (Kühne, 1958)
FOSSILSITE
Morganucodon is known from Britain, Belgium, Luxembourg, France, Germany, Switserland (LT > JM) India (LT>JE) Greenland (LT), China (JE), South Africa (JE) Arizona (JE)
Lorraine (Sint-Nicolas-de-port, Varangéville) France [Triassic Late (?Rhaetian)] ?M. watsoni
Kanton Schaffhausen, Hallau bonebed, Switserland [Triassic Late (Rhaetian)] M. peyeri
Fissure fillings, Glamorgan, St. Bride Island, Pant Quarry, Britain, Wales [Jurassic Early (\"Liassic,\" ?Sinemurian)] M. watsoni [Undescribed large morganucodontid]
Lower Lufeng Formation, Yunnan, China [Jurassic Early (\"Liassic,\" ?Sinemurian)] M. oehleri , M. heikuopengensis, these two Chinese species are clearly more derived taxa whitin the Morganucodon clade (Luo & Wu, 1994, 1995)
Kayenta Formation, Gold Springs, Arizona, United States [Jurassic Early (\"Liassic,\" ?Sinemurian)] Morganucodon sp.
INFO
Morganucodon watsoni (Kühne, 1949) > Morganucodon oehleri (Rigney, 1963) > Morganucodon heikuopengensis (Young, 1978) > Morganucodon peyeri (Clemens,1980) > Morganucodon sp., (Jenkins et al., 1983)
Morganucodon is the most completely known genus of the family Morganucodontidae.
Morganucodon watsoni (Kühne, 1949) [refered by some authors as Eozostrodon watsoni]
Morganucodon heikuopengensis (Young, 1978) [originally described as Eozostrodon heikuopengensis]