All Fossils

Non-fossil (Jewelry/Synthetic Crystal) (Modern (Anthropocene))

Trilobite Cephalon (Lower Head Shield) (Middle Devonian (likely Eifelian or Givetian stages))

Trilobite (Partial Cephalon) (Ordovician to Devonian)

Anthropomorphic Clay Figurine Head (Pseudo-fossil) (Modern / Holocene (Anthropogenic origin))

Anthropomorphic figurine (not a fossil) (Holocene / Anthropocene (Recent Construction))

Trace Fossil (Burrow) (Likely Cretaceous to Neogene (common in various periods, but matrix suggests Mesozoic/Cenozoic ch...

Weathered Fossiliferous Nodule / Crinoid Fragment (Possibly Carboniferous to Permian)

Fossiliferous Sedimentary Matrix / Shell Bed Fragment (Likely Devonian to Cretaceous depending on provenance)

Crystalline Fossil Fragment / Pseudofossil Mineral Aggregate (Possibly Carboniferous to Cretaceous (Indeterminate due to...

Indeterminate Crystalline Inclusion / Possible Biogenic Fragment (Unknown (Specimen appears to be a geological mineral s...

Sponge Fossil (Echinopora or Porifera) (Cretaceous or Paleogene)

Coral-derived Fossil Pebble (likely Porifera or Anthozoa) (Likely Paleozoic to Mesozoic (Devonian or Cretaceous are comm...

Spiriferid Brachiopod (Devonian)

Brachiopod (Lamp Shell) (Devonian (likely Middle to Late Devonian))

Modern Gastropod Shell (often mistaken for 'Horn Coral' fossils) (Holocene (Recent))

Brachiopod (Lamp Shell) (Devonian (likely Middle Devonian))

Modern Bivalve Shell (likely Corbicula) (Quaternary (Holocene Epoch))

Brachiopod (specifically a Productid or Spiriferid type) (Devonian to Mississippian)

Atrypa Brachiopod (Devonian)

Devonian Brachiopod (External Mold/Shell Fragment) (Middle Devonian)

Modern Freshwater Mussel Fragment (Commonly mistaken for a fossil) (Holocene / Recent)

Freshwater Mussel or Zebra Mussel (Dreissena) (Holocene (Modern))

Tabulate Coral (Honeycomb Coral) (Devonian (possibly Silurian))

Brachiopod (Petrified/Silicified Replacement) (Devonian Period)

Favosites fragment (Honeycomb Coral fragment) (Devonian Period)

Inoceramus Shell Fragment (Upper Cretaceous)

Fossilized Clam or Bivalve Fragment (Devonian (likely Middle to Late Devonian))

Incomplete Brachiopod or Bivalve Shell Fragment (Devonian (likely Middle Devonian))

Pen Shell (Subfossil Fragment) (Quaternary (Holocene Epoch))

Brachiopod (Lamp Shell) (Devonian (specifically likely Middle Devonian))

Spiriferid Brachiopod (Devonian to Carboniferous period)

Crystalline Quartz/Pseudofossil (Variable (Archean to Neogene depending on host rock deposition))

Crystalline Mineral Specimen (Non-Fossil) (Precambrian to Archean (Likely))

Chain Coral or Syringoporid Coral Clast (Silurian to Devonian)

Flexicalymene Trilobite (Upper Ordovician)

Sea Urchin (Regular Echinoid) (Late Jurassic to Early Cretaceous)

Orthoceras (Straight-shelled Cephalopod) (Devonian (possibly Silurian to Carboniferous))

Polished Ammonite Slice/Cross-section (Cretaceous (likely Albian stage))

Otodus shark tooth (Paleogene (Paleocene to Eocene epochs))

Otodus shark tooth (Paleogene (Paleocene to Eocene epoch))

Sand Tiger Shark Tooth (Late Cretaceous to Paleogene (likely Eocene or Oligocene))

Squalicorax Shark Tooth (Crow Shark) (Upper Cretaceous)