A fantastic and rare example to see an Arnioceras with a clear bite taken out of it, either by a Dapedium or Furo, two predatory fish around at this time. A very interesting study fossil. Approximately 200 million years old.
This type of ammonite is a Morphospecies which means it's highly variable. The ammonite itself is a rare type and has been preserved in solid brown calcite. This specimen was collected in 1973 from a temporary exposure and has been totally re-prepared for todays market. Approximately 175 million years old. An important drawer ammonite for the collector.