Microcleidus

Microcleidus is an extinct genus of sauropterygian reptile belonging to the Plesiosauroidea. The species has 40 neck vertebrae and a short tail of 28 vertebrae. Fossils of the genus have been found in France, the Posidonia Shale in Germany and Luxembourg, and the Alum Shale Formation of England.

Microcleidus
Temporal range: Toarcian
~
Fossil M. homalospondylus
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: †Sauropterygia
Order: †Plesiosauria
Family: †Microcleididae
Genus: †Microcleidus
Watson, 1909
Type species
Plesiosaurus homalospondylus
(Owen, 1865)
Other species
  • M. macropterus (Seeley, 1865)
  • M. tournemirensis (Sciau et al., 1990)
  • M. melusinae Vincent et al., 2019
Synonyms

M. macropteus

  • Plesiosaurus macropteus Seeley, 1865

M. tournemirensis

  • Plesiosaurus tournemirensis Sciau et al., 1990
  • Occitanosaurus tournemirensis
    Bardet et al., 1999
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