Sedimentary (Fossil)

Fossiliferous Shale

Fossiliferous Mudstone / Shale

Fossiliferous Limestone with Rugose Coral

Calcium Carbonate (CaCO3) featuring Rugosa (extinct order of solitary and colony corals)

Weathered limestone or calcitic fossil/reef fragment

Calcite-rich limestone (CaCO₃), possibly fossiliferous limestone

Polished fossiliferous limestone, likely crinoidal or coral limestone

Calcite (CaCO₃), fossiliferous carbonate rock

Fossil Shark Tooth

Carcharodon or Carcharias fossil (Vertebrate Fossil)

Fossilized Bone Chunk

Permineralized Vertebrate Bone (indeterminant)

Fossilized Gastropod Internal Mold

Steinkern (Mollusca: Gastropoda)

Fossilized Bone Fragment

Vertebrate Fossil

Fossilized Shark Tooth (likely Sand Tiger Shark)

Carcharias taurus (fossilized hydroxyapatite/calcium phosphate)

Fossil Snail

Gastropoda fossil

Sandstone with Fossil Leaf Impression

Sedimentary rock (Sandstone/Siltstone matrix) with Carbonaceous film fossil

Crinoid Stalk in Limestone

Crinoid fossil in Biomicrite (Limestone)

Bivalve Fossil (Clam Fossil)

Class Bivalvia (likely Gryphaea or similar Order)

Sea Urchin Fossil

Echinoidea (test/fossil)

Shark Tooth Fossil

Selachii fossil

Fossil Sponge / Horn Coral / Crinoid Stem

Phylum Porifera or Cnidaria fossilized in calcium carbonate / silica

Fossiliferous Limestone

Calcium carbonate matrix with macrofossils (CaCO3)

Chert or flint with chalcedony/quartz veins

Microcrystalline silica: primarily quartz (SiO₂), including chalcedony; possible fossiliferous limestone or silicified material

Mosasaur Tooth Fossil

Mosasauridae (likely Prognathodon or Plioplatecarpus)

Fossiliferous Sandstone Pebble (with Crinoid / Shell Impression)

Sandstone containing fossiliferous inclusions (SiO2 matrix with calcite/silica cast fossil)

Sandstone and Conglomerate pebbles

Sedimentary clastic rock

Bivalve Fossil (Clam Shell)

Class Bivalvia

Fossilized Bivalve in Limestone

Class Bivalvia within Sedimentary Matrix (likely CaCO3)

Brachiopod Fossil

Rhynchonellida (Order)

Fossil Snail

Gastropoda (fossilized)

Fossil-bearing limestone

Bioclastic limestone, likely containing bivalve or brachiopod impressions

Fossiliferous Rock (Invertebrate Fossil in Matrix)

Fossiliferous limestone or shaly matrix containing skeletal fossil remains

Tumbled, weathered limestone or calcareous concretion

Calcite-rich limestone; predominantly calcium carbonate (CaCO₃)

Fossil Bone Fragment

Petrified bone (permineralized hydroxyapatite)

Brachiopod Fossil in Limestone

Phylum Brachiopoda embedded in sedimentary rock

Fossil Assortment and Geological Specimens

Various (including Ammonoidea)

Fossiliferous limestone

Calcarenite/bioclastic limestone, predominantly calcite (CaCO₃)

Fossiliferous Limestone with Crinoid Stem

Sedimentary Rock with Echinodermata fossil fragment

Crinoid Stem Fossil in Matrix

Crinoid (Class Crinoidea) in Limestone/Siltstone matrix

Fossilized Fish (Lepidotes)

Lepidotes sp. (Order: Lepisosteiformes)

Fossilized Bone

Permineralized Vertebrate Bone

Bivalve Fossil (Internal Mold)

Bivalvia (Phalladomya or similar genus)

Fossiliferous Limestone

Calcium Carbonate (CaCO3) with Biogenic Fossils

Fossiliferous Limestone (Crinoidal)

Calcite-bearing bioclastic packstone (CaCO3)

Orthoceratid Fossil in Limestone

Orthoceras (extinct genus of Nautiloid Cephalopod)

Fossilized Gastropod / Coral

Phylum Mollusca / Cnidaria (Silicified or Calcified)

Devil's Toenail

Gryphaea (extinct genus of foam oysters, typically composed of Calcite CaCO3)