Microcleidus was a plesiosaur, a type of marine reptile. It was not a dinosaur, though it coexisted with many dinosaurs. The first Microcleidus fossil was discovered in 1911.

All the Microcleidus illustrations below were collected from the internet. Enjoy and explore:

Microcleidus was described by the following scientific paper(s):
  • N. Bardet and P. Godefroit. 1999. A new elasmosaurid Plesiosaur from the Lower Jurassic of southern France. Palaeontology 42(5):927-952
  • R. Tate and J. F. Blake. 1876. The Yorkshire Lias
  • A. Nel and X. Martínez-Delclòs. 1993. Les "Anisozygoptera" fossiles Phylogenie et classification (Odonata). Martinia 3:1-311