sentences:  The type and referred specimens of "Plesiosuchus" were discovered by John Clavell Mansel-Pleydell in the 1860s alongside the remains of several other large-bodied marine reptiles along the coast of Dorset.Mansel-Pleydell gave these remains to the British Museum (now in the Natural History Museum) in 1866.Part of the holotype of "P. manselii" (NHMUK PV OR40103a) was first described by John Hulke in 1869.