This is a "Ammonite - Double" with two species. We have here a (Gulielmiceras) gulielmii together with a Reineckia anceps. The species Reineckia anceps is relative rare in the Oxford Clay.
|Ashton Keynes, England|
|Size of Ammonite:||about 51 & 54 mm |
|Age:||Middle Jurasic, Kallaways Beds, Callovian (about 164 Mill. Years)|