Crinoidal limestone, light micrograph
Muschelkalk limestone, light micrograph
Carboniferous limestone with crinoid stem
Limestone, light micrograph
Oolitic limestone, light micrograph
False razor shell fossilised in limestone
Iceland cockle
Whiteavesia bivalve mollusk fossil
Fossilised Exogyra africana Oyster shells
River clam shells on slab
Turtle skull bivalve fossil
Bivalve fossil
Sea lilies fossilised in black stone
Crinoid fossil (Onychocrinus exculptus)
Fossil Eocrinoid or Dawn Crinoid (Gogia)
Pterocoma fossil crinoid
Fossil sea urchin spines
Oyster shell, LM micrograph
Ammonite fossil, thin section
Fossilised oyster shells
Freshwater mussel shell
Fossil Oyster
Macrocrinus fossil crinoid
Ammonite fossils
Crinoid, Mississippian
Coloured SEM of fossilised filamentous bacteria
Clypeaster fossil sea urchin
Foraminiferans, light micrograp
Fossil diatom, light micrograph
Aragonite-covered crayfish
Quartz nodule, polarised light micrograph
Garnet mica schist thin cut, polarised light micrograph
Hornfels, polarised light micrograph
Amphibolite, light micrograph
Bunter sandstone, light micrograph
Gneiss, light micrograph
Gneiss with garnet, light micrograph
Granite, light micrograph
Quartz phyllite, light micrograph
Val Gardena sandstone, light micrograph
Fossil oyster
Fossil crinoids
Pentacrinites, crinoid fossil
Abstract polarised light micrograph
Coral limestone
Cone shell
Foraminifera protozoan, light micrograph
Abalone shell, SEM
Rugose coral on limestone surface
Fossilised dinosaur faeces, SEM
Selenite mineral, light micrograph
Jasper, polarised light micrograph
Snowball garnet, light micrograph
Lasa marble, light micrograph
Kimberlite rock, light micrograph
Ammonite fossil
Calcite crystal rosettes
Clam shell fossilised in black limestone
Nummulitic limestone, polarised light micrograph
Trachyte. polarised light micrograph
Granodiorite, light micrograph
Rhyolite, light micrograph
Arkose, polarised light micrograph
Fossil Oyster (Alectryonia diluviana)
Paper clam
Jewel-box shell
Astarte clam fossils in limestone
Fossil Ostracod, SEM
Limestone with fossilised shells
Oyster fossil
Fossil crinoid
Limestone with Turritella shell fossils
Triassic underwater scene, illustration
Fossil scallops
Fossil molluscs
Fossil Dinosaur eggshell, SEM
Sea urchin fossil
Cap shell, Jurassic era
Fossilised extinct Jurassic oyster
Fossil scallop shell
Foraminifera, polarised light micrograph
Ammonite shell fossilised in limestone
Aplite, light micrograph
Brixen granite, light micrograph
Orthogneiss, light micrograph
Shells and pebbles on a beach
Heliophyllum fossil
Red-brown, patterned Actinocyathus coral
Fossilised coral
Sea pen fossil
Rugose coral fossil
Rugose coral with pitted surface
Fossil Agatized Coral, Tampa Bay, Florida
Fossil Coral sectioned
Fossil coral
Swamp clam fossil
Mussel glue threads, SEM
Panopea glycimeris shell
Baculites ammonite shells
Ecphora quadricostata Sea snail
Pelican's foot gastropod fossil
Promicroceras ammonites fossil
Cassis canellata (Helmet shell)
Ficopsis penita (Fig shell), Eocene era
False olive shell
Fossilised ammonite shell
Nerinea shell and cross-section view
Tightly coiled fossil
Tusk shell (Dentalium) fossilised in rock
Fossil Ammonites (Lamberticeras lamberti)
Gastropod (Maclurites)
Ammonite Fossil, Cretaceous
Fossil Cephalopod (Spyroceras)
Fossil Squid
Fossil Turritella casts
Wiwaxia Burgess Shale fossil
Mollusc fossil breccia
Shell fragment breccia fossil
Nautiloid fossil
Belemnite fossil
Snakestone ammonite
Ammonite attacking a dinosaur, artwork
Rock mineral crystals, polarised LM
Sand grain, light micrograph
Sand grains, light micrograph