Possible predation attack on the top ammonite by the fish Dapedium politum. These nips out of the promicroceras living chambers fit the jaws of this predatory fish exactly. Two out of every five promicroceras has this devastating injury ! The ammonites are of fine quality preserved in solid calcite. The matrix has a cut base for ease of display. Prepared by Andy Cowap. Approximately 200 million years old.
