All Fossils

Explore fossils identified by our AI-powered system

Petrified Wood (Polished Agatized/Chertified Wood Fragment) - Body fossil (permineralized/petrified plant tissue, paleobotanical)

Petrified Wood (Polished Agatized/Chertified Wood Fragment) (Late Triassic to Eocene (commonly Triassic Chinle Formation...

Septarian Nodule Fragment (Turtle Stone / Mud Crack Septarium) - Pseudofossil / Diagenetic Concretion (often misidentified as a body fossil)

Septarian Nodule Fragment (Turtle Stone / Mud Crack Septarium) (Upper Cretaceous (typically Pierre Shale Formation or eq...

Septarian Nodule Segment (Pseudosuchian / Geode Mineralization) - Inorganic Concretion / Septarian Structure (Not a fossil)

Septarian Nodule Segment (Pseudosuchian / Geode Mineralization) (Cretaceous (commonly found in Late Cretaceous strata))

Petrified Wood (Agatized / Opalized Wood) - Body fossil / Mineralized replacement fossil (Plant material)

Petrified Wood (Agatized / Opalized Wood) (Likely Paleogene to Neogene (Eocene - Miocene) or Mesozoic (Jurassic - Cretac...

Agatized / Quartz-lined Fossil Shell Internal Mold or Pseudofossil Geode Fragment - Body fossil mold/cast (or mineral pseudofossil); Invertebrate (Mollusca: Gastropoda or Bivalvia)

Agatized / Quartz-lined Fossil Shell Internal Mold or Pseudofossil Geode Fragment (Uncertain (commonly Cretaceous, Paleo...

Turban Snail / Top Shell (Modern or Subfossil Gastropod) - Body fossil / Subfossil (Invertebrate Mollusk)

Turban Snail / Top Shell (Modern or Subfossil Gastropod) (Holocene / Recent (Quaternary))

Chimpanzee Skull (Modern Osteological Specimen or Replica) - Modern Osteological Specimen / Skeletal Remains (Vertebrate, Mammal, Primate). Note: This is a contemporary bone specimen or cast replica, not a true geological fossil.

Chimpanzee Skull (Modern Osteological Specimen or Replica) (Holocene / Recent)

Fossilized Shark Tooth fragment / Ray Tooth / Fish Tooth (Indeterminate) - Body fossil (Vertebrate isolated tooth / oral plate fragment)

Fossilized Shark Tooth fragment / Ray Tooth / Fish Tooth (Indeterminate) (Neogene (Miocene to Pliocene) or Cretaceous)

Fossil Bivalve Shell Fragment (Inoceramid or Pecten sp.) - Body fossil (Calcareous invertebrate shell fragment)

Fossil Bivalve Shell Fragment (Inoceramid or Pecten sp.) (Cretaceous to Neogene (Miocene/Pliocene))

Fossil Sea Urchin (Echinoid Flint Internal Mold) - Body fossil / Internal mold (steinkern), Invertebrate

Fossil Sea Urchin (Echinoid Flint Internal Mold) (Late Cretaceous (Campanian to Maastrichtian))

Fossilized Sea Urchin (Echinoid Steinkern / Flint Internal Mold) - Internal Mold (Steinkern) / Body Fossil, Invertebrate Marine Echinoderm

Fossilized Sea Urchin (Echinoid Steinkern / Flint Internal Mold) (Upper Cretaceous (Santonian to Maastrichtian))

Fossil Seed Fern (Neuropteris / Alethopteris) - Compression/Impression body fossil of plant foliage (Paleobotanical)

Fossil Seed Fern (Neuropteris / Alethopteris) (Late Carboniferous (Pennsylvanian / Westphalian))

Stigmaria (Scale Tree Root) - Trace/Body Fossil (Cast/Mold) of a Lycopodiophyta (Ancient Club Moss) root system

Stigmaria (Scale Tree Root) (Carboniferous (Pennsylvanian sub-period))

Brachiopod Death Assemblage / Shell Bed - Body fossils (Invertebrate); Lagerstätte-style shell accumulation

Brachiopod Death Assemblage / Shell Bed (Middle to Late Ordovician)

Rice Grain Bryozoan or Ostracod-rich Limestone - Body fossil (invertebrate index fossils in a death assemblage / coquina)

Rice Grain Bryozoan or Ostracod-rich Limestone (Late Ordovician (Katian Stage))

Scale Tree Bark (Lepidodendron) - Body fossil (compression/mold); Plant (Lycopsid)

Scale Tree Bark (Lepidodendron) (Carboniferous (Pennsylvanian sub-period))

Opalized Wood or Shell Fragment (Jewelry Specimen) - Body fossil / Replacement (Mineralized replacement of biological matter by precious opal)

Opalized Wood or Shell Fragment (Jewelry Specimen) (Cretaceous (likely Early Cretaceous to Late Cretaceous))

Mosasaur Humerus - Body fossil - Vertebrate (Marine Reptile)

Mosasaur Humerus (Late Cretaceous (Maastrichtian))

Dinosaur Limb Bone (likely Humeral/Femoral fragment) - Body Fossil (Vertebrate bone)

Dinosaur Limb Bone (likely Humeral/Femoral fragment) (Cretaceous (likely Late Cretaceous))

Fossil Shark Tooth Fragment - Body fossil; Vertebrate (Chondrichthyes)

Fossil Shark Tooth Fragment (Neogene (likely Miocene or Pliocene))

Stingray Tail Barb (Tail Spine) - Body fossil; Chondrichthyes (Vertebrate)

Stingray Tail Barb (Tail Spine) (Paleogene to Neogene (likely Eocene to Miocene))

Dorsal Fin Spine (Hybodont Shark) - Body fossil / Vertebrate (Chondrichthyes)

Dorsal Fin Spine (Hybodont Shark) (Cretaceous)

Cretaceous Shark Tooth Fragment or Ray Dental Plate Fragment - Body fossil; vertebrate (Chondrichthyes) skeletal element

Cretaceous Shark Tooth Fragment or Ray Dental Plate Fragment (Cretaceous to Neogene)

Fossilized Shark Tooth (Eroded) - Body fossil; Vertebrate; Chondrichthian dental element

Fossilized Shark Tooth (Eroded) (Neogene (likely Miocene or Pliocene))

Rugose Coral (Horn Coral) - Body fossil of a solitary invertebrate cnidarian

Rugose Coral (Horn Coral) (Devonian to Carboniferous (Mississippian))

Solitary Rugose Coral (Horn Coral) - Body fossil of a solitary invertebrate marine organism

Solitary Rugose Coral (Horn Coral) (Devonian to Carboniferous (Mississippian/Pennsylvanian))

Prolecanitid Goniatite (Ammonoid) - External mold / Impression of an invertebrate cephalopod

Prolecanitid Goniatite (Ammonoid) (Carboniferous (Mississippian to Pennsylvanian))

Internal mold of a Heart Urchin (Spatangoid) - Body fossil (steinkern/internal mold); Invertebrate (Echinoderm)

Internal mold of a Heart Urchin (Spatangoid) (Cretaceous (likely Late Cretaceous))

Bryozoan colony (likely Cyclostome or Trepostome) - Body fossil (Replacement/Mineralization), Invertebrate

Bryozoan colony (likely Cyclostome or Trepostome) (Upper Ordovician (Cincinnatian))

Stromatoporoid (Ancient Sea Sponge) - Body fossil; Invertebrate (Calcareous Sponge)

Stromatoporoid (Ancient Sea Sponge) (Late Ordovician (Richmondian Stage))

Solitary Rugose Coral (Horn Coral) - Body fossil; Invertebrate (Cnidaria)

Solitary Rugose Coral (Horn Coral) (Late Ordovician)

Crows Foot Shark Tooth / Extinct Mackerel Shark Tooth - Body fossil; vertebrate dental remain (Elasmobranchii)

Crows Foot Shark Tooth / Extinct Mackerel Shark Tooth (Cretaceous (Late Cretaceous) to Paleogene (Eocene))

Fossiliferous Limestone Clast (Shell Fragment) - Body fossil fragment (Invertebrate macrofossil)

Fossiliferous Limestone Clast (Shell Fragment) (Uncertain; potentially Paleozoic to Mesozoic era)

Anthropomorphic Plush Simulacrum (Colloquially: 'Squishmallows' Hans the Hedgehog McDonald's Variant) - Synthetic artifact / Modern cultural remains; non-biological fossil

Anthropomorphic Plush Simulacrum (Colloquially: 'Squishmallows' Hans the Hedgehog McDonald's Variant) (Holocene Epoch (A...

Florida Fighting Conch - Invertebrate body fossil (Gastropod shell)

Florida Fighting Conch (Pleistocene to Holocene)

Felted / Partial Lithic Fragment (Poss. Weathered Bone Fragment) - Body fossil (Incomplete), possibly a highly weathered vertebrate bone fragment or a non-biological lithic clast

Felted / Partial Lithic Fragment (Poss. Weathered Bone Fragment) (Indeterminate (Possibly Holocene to Pleistocene contex...

Sand Tiger Shark Tooth - Body fossil (Vertebrate tooth)

Sand Tiger Shark Tooth (Eocene epoch (of the Paleogene period))

Aura Treated Agate Druzy / Geode Section - Pseudo-fossil (Mineral Specimen); Geological mineral formation with thin-film vaporization coating

Aura Treated Agate Druzy / Geode Section (Geologically variable (typically Eocene to Miocene for similar Brazilian/Urugu...

Shark Tooth (Sand Tiger Shark or similar) - Body fossil (Vertebrate tooth)

Shark Tooth (Sand Tiger Shark or similar) (Cretaceous to Neogene (likely Eocene or Miocene))

Modern Non-Fossilized Bone Fragment (Likely Avian or Small Mammal) - Fresh/Sub-fossil Bone Fragment; Vertebrate skeletal remains

Modern Non-Fossilized Bone Fragment (Likely Avian or Small Mammal) (Holocene / Recent)

Petrified Wood Fragment - Body fossil; Petrified/Permineralized Plant

Petrified Wood Fragment (Broadly Triassic to Jurassic)

Steinkern of a Fossil Gastropod (Prehistoric Snail) - Internal mold (Steinkern); Invertebrate Body Fossil

Steinkern of a Fossil Gastropod (Prehistoric Snail) (Cretaceous (Upper Cretaceous, likely Coniacian to Campanian))