Sedimentary (Fossil)

Fossilized Crinoid Stem in Limestone

Crinoidea (Class) in Calcium Carbonate (CaCO3) matrix

Crinoid Fossil in Limestone

Crinoidea fossil (stalk segments) in Calcium Carbonate (CaCO3) matrix

Fossiliferous limestone

Bioclastic carbonate rock, predominantly calcite (CaCO₃)

Likely vertebra fossil or bone fragment

Indeterminate fossilized vertebra; mineralized hydroxyapatite, commonly Ca₅(PO₄)₃(OH)

Weathered limestone or calcareous sandstone

Calcite-rich carbonate rock, chiefly calcium carbonate (CaCO₃), possibly fossiliferous limestone

Fossiliferous limestone pebble

Bioclastic limestone, primarily calcite (CaCO₃)

Fossiliferous limestone

Bioclastic limestone, commonly crinoidal or shelly limestone (calcite, CaCO₃)

Weathered limestone pebble

Limestone, predominantly calcite (CaCO₃), possibly fossiliferous or oolitic

Starfish Fossil

Asteroidea fossil

Fossiliferous shale or mudstone with plant fossils

Carbonaceous mudstone/shale containing fossilized foliage, likely fern or seed-fern impressions

Fossiliferous Limestone

Limestone with embedded fossil cross-section

Fossiliferous Limestone

Bioclastic Limestone

Fossil Shell

Invertebrate fossil (Mollusca)

Fossil Shark Tooth

Carcharodon or Carcharias fossil (Vertebrate Fossil)

Fossil Shark Tooth

Selachii fossil

Fossil coral fragment

Likely fossilized colonial coral; exact taxon cannot be determined from the fragment

Fossil Snail Shell (Embedded in Resin)

Gastropoda fossil

Fossiliferous Limestone with Crinoid stems

Limestone (CaCO3) containing Crinoidea fossils

Fossil Brachiopod or Mollusk Cast

Phylum Brachiopoda / Mollusca internal mold

Fossilized Bone Fragment

Vertebrate Fossil

Fish Fossil in Limestone

Lycoptera (likely) in Micritic Limestone

Fossil Belemnite Guard

Belemnitella spp. (rostrum)

Fossiliferous Limestone

Fossiliferous Calcilutite / Biomicrite

Fossiliferous Shale

Fossiliferous Mudstone / Shale

Fossilized Shark Tooth

Chondrichthyes (Class) fossil

Fossilized Shark Tooth

Selachimorpha fossil

Shark Tooth Fossil

Selachii fossil

Fossil-bearing limestone, likely coral or shell limestone

Bioclastic calcarenite/calcirudite; predominantly calcium carbonate (CaCO₃), commonly calcite

Fossil-bearing limestone or calcareous mudstone pebble

Micritic limestone, primarily calcite (CaCO₃), with possible fossil or iron-oxide vein features

Polished fossiliferous limestone, possibly coral or shell fossil

Calcite-rich limestone (CaCO₃), with probable fossilized skeletal structures

Polished fossiliferous limestone

Bioclastic limestone, commonly crinoidal or shell-rich micrite

Fossilized Bivalve Shell

Class Bivalvia (fossilized)

Fossiliferous Limestone

Biogenic Limestone with Brachiopod/Crinoid fragments

Fossilized Coral

Cnidaria (Hexacorallia)

Fossiliferous limestone

Bioclastic carbonate rock, primarily calcite (CaCO₃)

Polished fossiliferous agate

Chalcedony (microcrystalline SiO₂) containing fossil fragments, likely an agatized limestone or stromatolite

Fossil Snail

Gastropoda fossil

Fossiliferous limestone with a fossil sea urchin

Bioclastic limestone containing an echinoid fossil (class Echinoidea)

Possible fossilized bone fragment

Fossil bone, composition primarily carbonate-hydroxylapatite [Ca₅(PO₄)₃(OH)]

Scallop Shell Fossil

Pecten sp.

Fossiliferous limestone with silicified fossil material

Bioclastic limestone; likely marine mollusk/coral fragments, locally replaced by chalcedony or calcite

Fossil-bearing limestone slab

Bioclastic limestone, likely containing brachiopod or bivalve impressions