mussels and belemnitida on a white background

belemnitida fossil paleontology squid animal chalk ancient white stone scientific science prehistoric mineral marine era cretaceous extinct belemnoid belemnite jurassic sea cephalopod background rock fossils research paleontological museum belemnoidea finger devil macro thunderbolt belemnites fauna shape palaeontology isolated collection black cuttlefish shrimp minerals sink discovery cephalopoda mesozoic dinosaur formation artwork