Published online by Cambridge University Press: 06 July 2012
This Plesiosaur was collected from the Oxford Clay near Peterborough by A.N. Leeds, Esq., F.G.S., and was acquired for the Hunterian Museum, Glasgow University, by Professor J. W. Gregory. The major portion of the skeleton is present, and the bones are in an excellent state of preservation. The specimen has many striking resemblances to Cryptocleidus oxoniensis, but detailed examination showed that it could not belong to that species, and the differences existing in the paddle, shouldergirdle, number of vertebræ, and conditions of ossification are such that it cannot be retained in that genus as now defined. Under the circumstances it seems advisable to create a new genus.