Fossil Identifier |
Common terms and phrases
amber ambulacral ammonoids amphibians animal aperture appear Archaeopteryx beds bivalves blastoids bony fish brachiopods bryozoan calyx Cambrian CARBONIFEROUS Cenozoic cephalon cephalopods CLASS coils colony corallites CRETACEOUS CRETACEOUS RECENT crinoids curved deposits Devonian dinosaurs echinoderms echinoid Eocene Epoch exoskeleton feet ferns flattened fossil hunter FOSSIL IDENTIFIER fossil record gastropods genera genus geological glabella graptolites grooves growth lines head shield inches includes insects invertebrates JURASSIC known LEFT limestone living mammals Mass extinction matrix Mesozoic million years BP minerals mollusc mould Nautiloids North America oceans OLIGOCENE ORDOVICIAN palaeontologists Palaeozoic pedicle foramen Period Permian Phacops PHYLUM plants plates Pleistocene Protoceratops pseudomorph pygidium radial ribs ridged rock rugose corals sauropods Scientific Films sediment septae shale shape shell SILURIAN Siphonia skeleton species shown specimen shown spicules sponges stalk stipe strata sutures tabulate corals tapered teeth thecae TRACE FOSSILS TRIASSIC Triceratops trilobite tubes umbo usually valves vertebrates