Now updated for CSW19. New words, if any, and new inflections of existing words, are shown in red.
| acanthin | strontium sulphate in skeletons of Radiolaria. |
| acritarch | any of a group of fossil one-celled marine organisms. |
| ammolite | the fossilised shell of an ammonite. |
| ammonite | a type of fossil. |
| ammonitic | of or like an ammonite, a type of fossil. |
| ammonoid | an ammonite. |
| baculite | a fossil of the genus Baculites, allied to the ammonites, with a straight, tapering shell. |
| belemnite | a fossil pointed like a dart, being the internal shell of a cephalopod mollusc. |
| bioherm | a mound of material laid down by sedentary marine organisms, esp a coral reef. |
| biostratigraphy | determination of age, etc., of sedimentary strata from fossils which they contain. |
| blastoid | one of the Blastoidea, a group of budlike calcareous fossil echinoderms. |
| bonebed | an area containing dinosaur fossils. |
| calamite | a reedlike plant of an extinct group related to the horsetails, found as fossils chiefly of Carboniferous age. |
| coccolith | a small rounded body found in chalk formations, consisting of microscopic plates secreted by extinct algal plankton. |
| conodont | any of various Palaeozoic toothlike fossils of uncertain affinity. |
| coprolite | fossilized excrement. |
| coprolith | fossilized excrement. |
| coprolitic | containing, pertaining to, or of the nature of, coprolites. |
| crinite | a fossil crinoid. |
| cystid | a kind of extinct echinoderm. |
| cystidean | a cystoid, an extinct echinoderm. |
| cystoid | a kind of extinct echinoderm. |
| dinoceras | a uintathere, an animal of the genus Uintatherium, gigantic fossil ungulates. |
| diprionidian | of graptolites, serrated on both sides. |
| encrinal | relating to encrinites; containing encrinites, as certain kinds of limestone. |
| encrinic | relating to encrinites; containing encrinites, as certain kinds of limestone. |
| encrinital | of or like an encrinite, a fossil crinoid. |
| encrinite | a fossil crinoid, esp one belonging to, or resembling, the genus Encrinus. |
| encrinitic | of or like an encrinite, a fossil crinoid. |
| fossil | the remains of an animal or plant preserved in the earth's crust. |
| fossiliferous | bearing fossils. |
| goniatite | one of an extinct genus of fossil cephalopods, allied to the Ammonites. |
| goniatitoid | having the form of a goniatite; (noun) a fossil like a goniatite. |
| graptolite | a characteristic Silurian fossil with an appearance almost like writing upon shales. |
| graptolitic | related to a graptolite. |
| hippurite | a Cretaceous fossil lamellibranch with one conical valve and one flat one. |
| hippuritic | of or like a hippurite, a cone-shaped fossil bivalve mollusc. |
| hominid | pertaining to a fossil apeman; (noun) a fossil apeman. |
| ichnite | a fossil footprint. |
| ichnofossil | a fossil footprint. |
| ichnolite | a fossil footprint. |
| ichnology | a branch of paleontology dealing with the study of fossilized footprints, tracks, traces, etc. |
| ichthyodorulite | a fossilised fish-spine. |
| ichthyodorylite | a fossilised fish-spine. |
| ichthyolite | a fossil fish. |
| ichthyolitic | of or like an ichthyolite, a fossil fish. |
| macrofossil | a fossil large enough to be seen with the naked eye. |
| microfossil | a very small fossil. |
| mosasaur | a gigantic Cretaceous fossil pythonomorph reptile. |
| nonfossil | not fossil. |
| nummuline | esp. of limestone, containing or consisting of nummulites. |
| nummulite | a fossil of the genus Nummulites and allied genera. |
| nummulitic | of, like, composed of, containing, nummulites; as, nummulitic beds. |
| odontolite | a fossil bone or tooth coloured blue with phosphate of iron, aka bone-turquoise. |
| ornithichnite | a fossil footprint of a bird. |
| palaeontology | the study of fossils. |
| paleontologic | relating to paleontology. |
| paleontological | relating to paleontology. |
| paleontology | the study of fossils. |
| reliquiae | (Lat.) remains, esp fossil. |
| remanie | (Fr.) a fossil or other relic of an older rock preserved in a later deposit. |
| serpulite | a fossil serpula shell. |
| stigmarian | the pitted underground part of Sigillaria or other fossil tree. |
| subfossil | part of a fossil. |
| taphonomic | relating to taphonomy. |
| taphonomical | relating to taphonomy. |
| taphonomist | an expert or specialist in taphonomy. |
| taphonomy | the study or science of how plants and animals die, decay and become buried and fossilized. |
| tentaculite | a ringed conical Silurian fossil. |
| terebratula | a member of Terebratula, the lampshell genus of brachiopods, with perforated beak. |
| trilobite | any one of numerous species of extinct arthropods belonging to the order Trilobita. |
| trilobitic | of, pertaining to or containing, trilobites; as, trilobitic rocks. |
| trochite | a wheel-like joint of the stem of a fossil crinoid. |
| uintathere | any animal of the genus Uintatherium, gigantic fossil ungulates. |
| unfossilised | not fossilised. |
| unfossilized | not fossilized. |
| zoolite | a fossil animal. |
| zoolith | a fossil animal. |
| zoolithic | of or like a zoolite, a fossil animal. |
| zoolitic | of or like a zoolite, a fossil animal. |