Mineralized Fossil

Fossil tooth, likely shark tooth

Fossilized selachian tooth, possibly Carcharodon or a related lamniform shark

Silicified oyster fossil

Fossil oyster shell, commonly Ostrea or Crassostrea, replaced or encrusted by chalcedony/quartz

Tiger Shark Fossil Tooth

Galeocerdo cuvier (fossilized)

Shell fossil or shell fragment

Likely a bivalve shell, composed mainly of calcium carbonate (aragonite/calcite); exact species cannot be determined from one photo

Fossil brachiopod or bivalve shell

Likely a ribbed brachiopod, possibly Spiriferida or Productida; exact identification requires locality and shell details

Fossilized shark tooth

Shark tooth fossil, likely *Otodus megalodon* or a related lamniform shark

Fossilized Horn Coral

Rugosa (Rugose Coral)

Weathered agate or chalcedony nodule

Microcrystalline quartz (SiO₂), likely agate/chalcedony with iron-oxide staining

Fossil shell fragment, likely brachiopod or bivalve

Indeterminate fossilized marine mollusk or brachiopod; mineralized calcite shell in a carbonate matrix

Tooth fossil, likely mammalian or reptilian fragment

Indeterminate fossilized tooth; enamel and dentine, taxon unresolved

Fossil bivalve shell

Likely fossilized cockle or other marine bivalve; exact genus requires locality and internal features

Fossiliferous limestone fragment

Calcitic limestone; mainly calcium carbonate (CaCO₃), possibly with shell or coral debris

Fossilized oyster shell

Bivalve mollusk fossil, likely Gryphaea or Exogyra; calcite (CaCO₃) shell material

Fossilized mammoth molar fragment

Proboscidean molar enamel and dentine, commonly Mammuthus spp.

Fossilized bivalve shell

Fossil mollusk, likely an oyster or similar cemented bivalve; original shell mostly calcite (CaCO₃)

Fossilized wood fragment

Petrified wood; commonly silicified fossil wood (SiO₂ replacing organic tissue)

Fossil coral fragment

Fossilized colonial coral, commonly Favositidae or related tabulate coral

Fossil shark tooth

Likely fossilized shark tooth, possibly Otodus megalodon

Fossilized oyster or bivalve shell

Fossil Gryphaeidae or Ostreoidea; calcitic shell, CaCO₃

Fossil bivalve shell

Likely an extinct or modern-like ribbed cockle/scallop; exact genus requires locality and diagnostic hinge features

Honeycomb coral fossil

Fossilized colonial coral, likely tabulate coral (order Tabulata)

Polished ammonite fossil

Ammonoidea; likely a polished, chambered ammonite such as Acanthoceras or related Cretaceous form

Ammonite Fossil (Polished Section)

Ammonoidea (typically mineralized with Calcite CaCO3)

Fossilized coral or porous marine limestone

Likely fossil coral (Scleractinia), composed mainly of calcite/aragonite (CaCO₃)

Fossil shark tooth in limestone or sandstone matrix

Likely fossilized shark tooth, possibly Carcharodon or Carcharhinus sp.; matrix is probably calcareous sandstone/limestone

Fossilized echinoid (sea urchin)

Echinoid test; commonly Cretaceous–Eocene irregular echinoid, calcite (CaCO₃)

Weathered fossil shell fragment

Likely a fossilized bivalve or gastropod fragment; exact taxon cannot be determined from one view

Fossilized bone or tooth fragment in rock matrix

Indeterminate vertebrate fossil; mineralized apatite (carbonate-fluorapatite) with silica/carbonate-rich matrix

Fossilized Shark Tooth (Megalodon or Carcharocles fragment)

Elasmobranchii (Fossilized tooth root / crown section)

Fossilized echinoid (sea urchin), likely a sand dollar fragment or small regular urchin

Echinodermata; commonly Clypeasteroida or Echinoida, preserved mainly as calcite (CaCO₃)

Fossilized wood (petrified wood), likely silicified

Petrified wood; predominantly microcrystalline quartz (SiO₂) replacing wood tissue

Polished fossil coral

Fossilized colonial coral, commonly tabulate or rugose coral; calcite (CaCO₃) replacement

Fossilized bivalve or brachiopod shell

Mineralized carbonate shell, commonly calcite (CaCO₃); exact taxon indeterminate from image

Fossil shark tooth in sediment

Likely fossilized shark tooth, possibly *Carcharhinus* or *Otodus*; exact identification requires the tooth’s full morphology and locality

Fossil tooth, likely shark tooth

Fossilized selachian tooth; exact species cannot be determined from the image

Fossil sea urchin test

Echinoid test (class Echinoidea), likely a fossilized regular sea urchin

Fossilized bone fragment

Mineral-replaced vertebrate bone, commonly apatite [Ca₅(PO₄)₃(F,OH,Cl)]

Fossilized coral fragment

Fossil coral, commonly colonial scleractinian coral (order Scleractinia); exact genus indeterminate

Fossilized bivalve shell

Molluscan bivalve fossil; shell originally composed of calcium carbonate (aragonite/calcite, CaCO₃)

Fossil tooth, likely mammalian molar or premolar

Mineralized fossilized tooth; exact taxon cannot be determined from the image

Crinozoan fossil (Crinoid stem fragment)

Crinoid (Class Crinoidea)

Fossilized bivalve shell

Bivalvia indeterminate; likely a preserved clam or cockle shell, composed mainly of calcium carbonate (CaCO₃)