Promicroceras marstonense, Xipheroceras xiphus
Lower Jurassic, Lower Lias, Obtusum zone
Marston magna, Somerset, UK
This is a really nice specimen that has been fully prepared on one side . There are dozens of complete and partial specimens running through this specimen one large Xipheroceras and lots of Promicroceras. The bottom and back of this specimen has been cut.
The matrix measures approximately 11 cm's x 11cm's
