Identify Any Fossil in Seconds

Fossilized Mammal Bone Fragment (likely Sirenia or Megaherbivore) (Neogene to Quaternary (Miocene to Pleistocene epochs)...

Phylloceras Ammonoidea (Ammonite Section) (Jurassic to Cretaceous)

Calcite-filled Geode or Geological Mineral Specimen (Non-Fossil) (Indeterminate (Likely Sedimentary or Metamorphic era c...

Colonial Rugose Coral (Honeycomb Coral or Star Coral) (Carboniferous Period (likely Mississippian/Pennsylvanian subtypes...

Weathered Sedimentary Nodule (Pseudofossil) (Indeterminate; likely Paleozoic to Cenozoic matrix)

Pseudo-fossil (River-worn Sedimentary Rock) (Indeterminate (Matrix suggests Paleozoic or Mesozoic era))

Non-fossil Slag/Glass (Holocene (Anthropocene))

Non-fossiliferous Slag / Anthracite Coal (Unassigned (Potentially Carboniferous if natural coal; Modern if industrial sl...

Calamites Stem Fragment (Carboniferous (specifically Pennsylvanian sub-period))

Solitary Rugose Coral (Horn Coral) (Paleozoic (likely Devonian to Carboniferous))

Crinoid Stem Fragments (Sea Lillies) (Likely Mississippian/Pennsylvanian Subperiods (Carboniferous) or Devonian)

Trilobite Pygidium (Tail Segment) (Devonian (likely Middle Devonian))

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

Crinoid Columnal Segment (Sea Lily Stem) (Likely Mississippian to Pennsylvanian (Carboniferous Period))

Brachiopod (Lamp Shell) (Devonian - Carboniferous)

Brain Coral (Neogene to Quaternary (likely Holocene or Pleistocene))

Petrified Fish Skeleton (Fragmentary) (Cretaceous (likely Lower Cretaceous))

Not a fossil (Chert Projectile Point Artifact) (Holocene Epoch (dating from the Archaic to Woodland period of human hist...

Pseudo-fossil (Anthracite Coal Fragment) (Carboniferous (Pennsylvanian subperiod))

Pseudo-fossil (Anthracite Coal Fragment) (Carboniferous (Pennsylvanian sub-period))

Orthocone Nautiloid (Devonian - Silurian)

Orthocone Nautiloid (Devonian (possibly Silurian to Carboniferous))

Crinoid Ossicle (Columnal) (Mississippian sub-period of the Carboniferous Period)

Inoceramid Bivalve Shell Fragment (Upper Cretaceous)

Non-fossil Mineral Specimen (Quartz Crystal) (Indeterminate (Likely Proterozoic to Cenozoic depending on locality))

Belemite Rostrum (Thunderbolt Stone) (Jurassic to Late Cretaceous)

Tumbled Serpentinite Pseudofossil (Non-biological) (Proterozoic to Mesozoic (Variable based on regional metamorphism eve...

Non-fossiliferous Pink Granite (Pseudofossil specimen) (Precambrian (typically Proterozoic era))

Pyritized Gomphoid Sponge (Desmas) (Cretaceous (Upper/Late Cretaceous, specifically Campanian stage))

Pyritized Gomphocladivm or 'Pine-cone' Fossil (Lower Jurassic (Toarcian))

Anthropomorphic Carving / Not a Fossil (Modern or Holocene (Not geological))

Pseudo-fossil (Amethyst Crystal) (Variable (Crystallization commonly occurs in Proterozoic to Cenozoic host rocks))

Non-fossil Mineral Specimen / Banded Malachite (Formation typically occurs in the oxidation zones of copper ore deposits...

Stone Projectile Point (Spear Head or Knife Blade) (Holocene / Late Quaternary (Human Prehistory))

Crystalline Fossilized Shell Fragment or Mineral Pseudomorph (Potentially Cretaceous to Neogene)

Crinoid Columnal (Stem Segment) (Mississippian subperiod (Carboniferous) to Devonian)

Non-fossiliferous Mineral Specimen (Quartz Crystal) (Indeterminate (Mineral formation can span hundreds of millions of y...

Silicified Coral Fragment (Likely Carboniferous to Permian)

Anthropomorphic Carved Stone (Pareidolia/Artifact) (N/A (Holocene or Archaeological context))

Calyptraea sp. (Silicified Slipper Snail/Cup-and-saucer shell) (Neogene (likely Miocene or Pliocene))

Inorganic Geologic Concretion or Pseudo-fossil Artifact (Indeterminate (Matrix suggests possible Mesozoic or Cenozoic or...

Not a Fossil (Anthropogenic Ceramic Figurine) (Holocene (Modern Archaeological Context))