carpopenaeus callirostris fossil

carpopenaeus callirostris fossil prawn slice macro close-up detail prehistoric ancient extinct marine invertebrate crustacean arthropod fauna natural history geology paleontology science specimen museum education research discovery evolution biology zoology ecology environment historical educational mineralized petrified preserved sedimentary formation paleozoic era mesozoic cretaceous period marine life ocean sea deep time anatomy morphology carapace exoskeleton chelicerate cambrian explosion