Fossil

Silicified fossil-bearing chert

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

Fossiliferous limestone

Calcite-rich limestone (CaCO₃), possibly coral or shell-bearing

Rugose Coral Fossil

Order Rugosa

Fossil Belemnite Guard

Belemnitella spp. (rostrum)

Brachiopod Fossil

Phylum Brachiopoda (likely Order Rhynchonellida or Spiriferida)

Fossilized bivalve shell

Bivalvia indeterminate; likely a fossil clam or cockle

Ammonite Fossil

Ammonoidea

Petrified wood (possible)

Silicified wood; commonly quartz or chalcedony replacing wood

Crinoid Stem Fossil

Class Crinoidea (Echinodermata)

Sand Tiger Shark Tooth

Carcharias taurus (fossilized)

Fossilized Shark Tooth or Bone Fragment

Vertebrate Fossil (likely Carcharodon or similar genus)

Fossilized Rugose Coral in Limestone

Order Rugosa in Sedimentary Matrix (CaCO3)

Fossilized Favosites Coral (Honeycomb Coral)

Favosites (extinct genus Table Coral)

Fossil Shark Tooth

Odontaspididae (Sand Tiger Shark family)

Petrified Wood

Agatized or Silicified Wood (SiO2)

Fossil Shark Teeth (likely Sand Tiger Shark)

Carcharias taurus (fossilized dentition)

Rugose Coral Fossil (Horn Coral)

Order Rugosa

Fossilized Shark Tooth

Chondrichthyes (Class)

Fossilized Blastoid (Sea Bud)

Pentremites sp. (Echinodermata, Blastoidea)

Fossilized Brachiopod

Brachiopoda (e.g., Atrypa or Rhynchonellida)

Fossilized Trilobite or Mollusk Fragment

Phylum Arthropoda / Mollusca fossil in sedimentary matrix

Shark Tooth Fossil

Vertebrate fossilized tooth (Chondrichthyes)

Crinoid Stem Fossil

Crinoida (columnal ossicles)

Bivalve Fossil (Clam Shell)

Class Bivalvia

Bivalve Fossil (Mussel or Clam Shell)

Bivalvia

Spinosaurus fossil (permineralized bone)

Spinosaurus aegyptiacus (Calcium phosphate mineralized with silica/sediment)

Fossilized Shark Tooth

Fossil Chondrichthyes (various genera such as Carcharias or Odontaspis)

Fossil Plant Impression (Calamites)

Calamites sp. (Tracheophyta: Equisetopsida)

Gastropod Internal Mold (Steinkern)

Class Gastropoda fossil mold (Phylum Mollusca)

Polished fossiliferous limestone, possibly ammonite-bearing

Calcite-rich limestone (CaCO₃), with visible fossil or shell fragments

Silicified Gastropod Fossil (Agatized Fossil)

Gastropoda (Class) preserved in Chalcedony/Quartz (SiO2)

Fossiliferous limestone (likely ammonite/gastropod-bearing)

Bioclastic limestone; predominantly calcite (CaCO₃)

Fossil-bearing sedimentary rock (possible bone or shell fossil)

Unidentified fossiliferous sedimentary matrix; exact fossil and host rock cannot be determined from the image

Crinoid Fossil Fragment

Crinoidea (echinoderm fossil embedded in limestone/matrix)

Orthoceras Fossil in Limestone

Orthoceras sp. in Bituminous / Organic Limestone (primarily Calcite, CaCO3)

Fossilized Shell

Invertebrate fossil (Bivalvia or Brachiopoda)

Mosasaur Tooth Fossil

Mosasaurid vertebrate fossil (Hydroxyapatite)

Fossil shell

Likely a fossilized marine bivalve shell; exact taxon is indeterminate from the image.

Iron-rich rock or Concretion

Ironstone or Limonite concretion

Petrified Wood

Petrified Wood (Silicified Wood)

Fossiliferous Limestone

Bioclastic Limestone (Calcium Carbonate, CaCO3)

Fossiliferous limestone pebble (possible shell fossil)

Calcite-rich limestone, chiefly CaCO₃; fossil identity is unclear from the image