Morganucodon

Morganucodon
Scan and reconstruction of the M. oehleri holotype skull
Life restoration of Morganucodon watsoni
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Clade: Therapsida
Clade: Cynodontia
Clade: Mammaliaformes
Order: Morganucodonta
Family: Morganucodontidae
Genus: Morganucodon
Kühne, 1949
Type species
Morganucodon watsoni
Kühne, 1949
Species
  • M. watsoni (Kühne, 1949)
  • M. oehleri (Rigney, 1963)
  • M. heikuopengensis (Young, 1978)
  • M. peyeri (Clemens, 1980)
  • M. tardus (Butler and Sigogneau-Russell, 2016)

Morganucodon ("Glamorgan tooth") is an early mammaliaform genus that lived from the Late Triassic to the Middle Jurassic. It first appeared about 205 million years ago. Unlike many other early mammaliaforms, Morganucodon is well represented by abundant and well-preserved (though in the vast majority of cases disarticulated) material. Most of this comes from Glamorgan in Wales (Morganucodon watsoni), but fossils have also been found in Yunnan Province in China (Morganucodon oehleri) and various parts of Europe and North America. Some closely related animals (Megazostrodon) are known from exquisite fossils from South Africa.

The name comes from a Latinization of Morganuc, the name for South Glamorgan in the Domesday Book, the county of Wales where it was discovered by Walter Georg Kühne, giving the meaning "Glamorgan tooth".