All Fossils

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)

Coprolite (Fossilized Dung) (Miocene to Pleistocene (likely Neogene period))

Fragmentary Bone or Mosasaur Tooth Fragment (Likely Cretaceous)

Baltic Amber (Raw Specimen) (Eocene Epoch (Paleogene Period))

Ediacaran vendobiont fragment (Dickinsonia-type) (Ediacaran Period (Late Neoproterozoic))

Spiriferid Brachiopod (Devonian (possibly Silurian to Carboniferous))

Brachiopod (Spiriferid) (Devonian to Carboniferous (Mississippian))

Brachiopod (Spiriferid) (Devonian to Carboniferous (Mississippian))

Brachiopod (Spiriferid) (Devonian or Mississippian)

Spiriferid Brachiopod (Wing-shaped Brachiopod) (Devonian to Carboniferous (Mississippian))

Spiriferid Brachiopod (Devonian or Carboniferous (Paleozoic Era))

Zebra Nerite Fossil (Pleistocene to Holocene)

Internal Mold of a Gastropod (Steinkern) (Uncertain; possibly Jurassic to Cretaceous based on common morphology)

Hadrosaur Eggshell Fragment or Dinosaur Egg Geode (Late Cretaceous (approx. Campanian to Maastrichtian))

Internal Mold of a Gastropod or Brachiopod Steinkern (Likely Cretaceous or Jurassic)

Gastropod Internal Mold (Likely Cretaceous or Paleogene, though the morphology spans the Mesozoic/Cenozoic Eras)

Fossilized Gastropod Internal Mold (Likely Cretaceous to Neogene)

Brachiopod (Lamp Shell) (Devonian to Carboniferous (Mississippian))

Brachiopod (Lamp Shell) (Devonian to Carboniferous (Paleozoic Era))