This taxon is considered nomen dubium, species not entered
of the valid taxon Plesiosauria
according to the Paleobiology Database.
See the page for Plesiosauria →
Bibliography
Original description
H. G. Seeley. 1871. On a new species of Plesiosaurus from the Portland limestone. Annals and Magazine of Natural History (4th series) 8:181-185
DOI ↗