Species
Extinct

Plesiosaurus etheridgii

subjective synonym of Thalassiodracon hawkinsii
Huxley 1858
This taxon is considered subjective synonym of of the valid taxon Thalassiodracon hawkinsii according to the Paleobiology Database. See the page for Thalassiodracon hawkinsii →
Bibliography
Original description
T. H. Huxley. 1858. On a new species of Plesiosaurus from Street, near Glastonbury; with remarks on the structure of the atlas and axis vertebrae, and of the cranium, in that genus. Quarterly Journal of the Geological Society of London 14:281-294 DOI ↗