From the Jurassic,Callovian.
Collected from Peterborough,England.
Complete Devils toe nail with a "wing",this species was originally named Gryphaea dilobates, but was reviewed and decided it was actually a wide ranging species that continued on from the Bajocian.
Very similar ti Gryphaea but with the extra wing growth on the left side,a very weird looking bivalve.
Loose from matrix and measuring 70mm x 68mm.