I like to think that this specimen is a bit shy. At first, this looks like an ordinary beach pebble but when you open it, you find a hidden Jurassic surprise! This ammonite comes from Whitby which is the land of the ammonites. Based on the ribs, I think this is a Dactylioceras tenuicostatum ammonite. But if any ammonite experts think differently, feel free to let me know!
|Full Description||A pebble from the Upper Lias cut in half to reveal a cast and mould of a Dactylioceras tenuicostatum ammonite. Shell shows strong ribbing|
|Location||Whitby, North Yorkshire, England|
|Acquisition Details||Festival of Geology, University College London – £14.00|