7 cm Asteroceras sp. 5.5 cm Xiphoceras sp. Ammonite
Asteroceras & Xiphoceras Ammonite
Charmouth, Dorset England
Approx 189-196 million years old
A nice double showing two species of ammonite. The Asteroceras ammonite has a predation mark on it's keel where it has likely been bitten. The Xiphoceras ammonite has been prepared so that most of the spikes are intact and has 3 other juvenile ammonite species surrounding it.
The Asti ammonite measures 7 cm at its widest point the Xiph 5.5 cm the matrix 32 cm x 12 cm