Sedimentary (Fossil)

Coal

Bituminous Coal / Anthracite

Fossil oyster shell fragment

Fossilized oyster (Ostreidae), composed mainly of calcite (CaCO₃)

Fossiliferous limestone (likely ammonite/gastropod-bearing)

Bioclastic limestone; predominantly calcite (CaCO₃)

Coral Fossil

Scleractinia (Fossilized Coral)

Calamites fossil

Calamites (extinct genus of arborescent horsetails)

Gastropod Steinkern (Internal Mold Fossil)

Gastropoda (Class); Internal mold or 'Steinkern' composed of Calcium Carbonate (CaCO3) or Sedimentary matrix

Gastropod Fossil (Snail Steinkern)

Class Gastropoda fossil, composed of Calcium Carbonate (CaCO3)

Fossilized Coral (Rugose or Tabulate) or Stromatolite

Phylum Cnidaria / Stromatolithus

Spinosaurus fossil (permineralized bone)

Spinosaurus aegyptiacus (Calcium phosphate mineralized with silica/sediment)

Fossil Plant Impression (Calamites)

Calamites sp. (Tracheophyta: Equisetopsida)

Fossil Shark Tooth

Odontaspididae (Sand Tiger Shark family)

Weathered sandstone fragment

Quartz-rich sandstone (compositionally uncertain)

Fossiliferous Limestone

Biogenic Sedimentary Rock / CaCO3 with fossil fragments

Probable fossil-bearing rock or mineral concretion

Unidentified carbonate-rich concretion with a possible fossil inclusion

Ironstone Concretion

Ironstone (primarily Siderite or Limonite / Goethite, FeO(OH)·nH2O)

Fossiliferous Kalkstein (Marl/Sandstone)

Fossiliferous calcarenite/siltstone

Fossil Shell (Bivalve)

Class Bivalvia (fossilized)

Shark Tooth Fossil

Chondrichthyes (class) fossilized tooth

Petrified Wood

Agatized or Silicified Wood (SiO2)

Fossil Shark Teeth (likely Sand Tiger Shark)

Carcharias taurus (fossilized dentition)

Murex Fossil

Muricidae (Calcium Carbonate fossilization)

Fossil fish specimen

Fossilized fish vertebrate, likely an articulated fish impression; exact taxon indeterminate

Limestone

Sedimentary Calcite (CaCO3)

Fossiliferous Limestone

Biogenic Limestone containing marine invertebrate fossils

Weathered quartz-rich rock or fossil fragment

Indeterminate; likely quartz-bearing sandstone or siliceous fossil material

Fossil Shell

Phylum Mollusca (Gastropod fossil)

Fossiliferous Limestone

Biogenic Sedimentary Rock (primarily CaCO3 with fossil fragments)

Fossiliferous Limestone

Bioclastic Limestone (Calcium Carbonate, CaCO3)

Fossil gastropod shell

Fossilized gastropod, likely a small marine snail; exact genus cannot be determined from the image

Fossiliferous Sandstone

Fossiliferous Arenite

Fossil Shark Tooth

Chondrichthyes (class)

Fossiliferous Limestone

Biogenic Sedimentary Rock (Calcium Carbonate with Fossils)

Brachiopod Fossil in Sedimentary Matrix

Phylum Brachiopoda in Siltstone/Mudstone matrix

Weathered limestone or calcareous sandstone

Calcitic carbonate rock, likely limestone (CaCO₃), possibly slightly dolomitic

Ammonite Fossil

Ammonoidea (subclass)

Fossiliferous pebble, possibly a crinoid or shell fragment

Indeterminate bioclast in a dark sedimentary matrix; likely carbonate fossil material (calcite, CaCO₃)

Fossilized Shark Tooth

Chondrichthyes (Class)

Fossilized Brachiopod

Brachiopoda (e.g., Atrypa or Rhynchonellida)

Fossiliferous Sandstone / Quartzite Pebble

Sedimentary rock with skeletal fragments (e.g., Paleozoic crinoid/brachiopod fossils)

Silicified fossil-bearing chert

Microcrystalline quartz (SiO₂), likely chalcedony replacing carbonate shell material

Cockle Shell Fossil

Cardium (Bivalvia)

Shale

Shale (Fine-grained clastic sedimentary rock)