Museum specimen of spiny Fossil Crab from the Lower Miocene . A Rare Complete 3D prepared specimen with 8 the legs, claw and carapace, natural on its hard concretion. Female specimen with small claws. Specimens that present all the spines and the legs are very uncommon for a main reason: Once the specimen dies, it disarticulates. In this specimen all the legs are present. The matrix has been worked to show as more as possible of the specimen. Concretion is 55 x 35 x 17 mm. A painstaking work of many days was necessary to expose this specimen and preserve all those tiny details on the claws and on legs. All the parts of the specimen are original, not a composition, with no restorations, not pieces from other specimens. 100% original fossil. Rare museum specimen from a new site.