| Fossil sea urchin of the species Acrocidaris nobilis from the Oxfordian stage of Switzerland. The specimen measures approximately 26 mm in diameter and is preserved in its natural matrix. A single spine is also present and visible on the matrix. | |||
Location: | Péry-Reuchenette, Canton Bern, Jura Mountains, Switzerland | ||
| Size Matrix: | about 75 x 69 x 73 mm | ||
| Age: | Upper Jurassic, Oxfordian , Günsbergschichten (About 161 Ma) | ||