A SPLIT AMMONITE
VOLGA RIVER, RUSSIA
A Speetoniceras sp. from the Jurassic (200-145 million years ago) split, composite and polished, supported on stands
14in (36cm.) diameter
A SPLIT AMMONITE
VOLGA RIVER, RUSSIA
A Speetoniceras sp. from the Jurassic (200-145 million years ago) split, composite and polished, supported on stands
14in (36cm.) diameter