Fossilized Bone
Permineralized Vertebrate Bone
fossil
Category
Organic Specimen (Fossil)
Browse organic specimen (fossil) specimens identified by the Rock Identifier community.
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Fossilized Echinoid (Sea Urchin)
Echinoidea (Class)
sedimentary
Fossilized Shark Tooth (likely Sand Tiger Shark)
Carcharias taurus (fossilized hydroxyapatite/calcium phosphate)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Amber
Succinite (C10H16O)
mineraloid
Amber
Succinite (C10H16O)
gemstone
Petrified Wood / Fossilized Bone
Silicified / Mineralized Fossil (Silica SiO2)
fossil
Coquina
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Pyritized Ammonite
Ammonitida (replaced by Iron Disulfide, FeS2)
sedimentary
Black Limestone with Calcite Veining
Bituminous Limestone (CaCO3 with Organic Carbon inclusions)
sedimentary
Shark Tooth Fossil
Carcharodon / Otodus fossilized tooth (Calcium Phosphate / Hydroxyapatite)
fossil
Olive Sea Shell Fossil
Oliva sp. (Calcium Carbonate, CaCO3)
fossil
Fossilized Bone
Vertebrate fossil (mineralized bone)
fossil
Polished fossiliferous limestone, likely crinoidal or coral limestone
Calcite (CaCO₃), fossiliferous carbonate rock
fossil
Fossil Shark Tooth
Chondrichthyes (Class)
fossil
Fossil Shark Tooth
Chondrichthyes (class)
fossil
Starfish Fossil
Asteroidea fossil
fossil
Fossilized Bone
Permineralized Vertebrate Bone
fossil
Fossiliferous Limestone (with Crinoids)
CaCO3 (Calcium Carbonate)
sedimentary
Chert or flint with chalcedony/quartz veins
Microcrystalline silica: primarily quartz (SiO₂), including chalcedony; possible fossiliferous limestone or silicified material
sedimentary
Fossilized Bivalve Shell
Bivalvia (Phylum Mollusca)
fossil
Fossiliferous Limestone
Biogenic Calcium Carbonate (CaCO3)
sedimentary
Chert Concretion / Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Fossil-bearing limestone
Bioclastic limestone, likely containing bivalve or brachiopod impressions
fossil
Fossilized Shark Tooth (fragment)
Elasmobranchii (Class) fossil
fossil
Fossiliferous Limestone containing a Brachiopod or Mollusk Impression
Biogenic Sedimentary Rock / Fossiliferous Limestone
sedimentary
Fossilized Shark Tooth (Sand Tiger)
Carcharias taurus (fossil specimen)
sedimentary
Dinosaur Fossil Tooth
Vertebrate Fossilized Tooth
fossil
Fossil Shark Tooth
Selachii (fossilized dentition)
fossil
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with fossil inclusions
sedimentary
Fossiliferous Shale
Fossiliferous Mudstone / Shale
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Fossiliferous Chert or Limestone
Sedimentary rock containing fossilized marine invertebrates (likely crinoid stems or bryozoans)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock (Calcium Carbonate, CaCO3)
sedimentary
Fossilized Coral
Cnidaria fossil / Calcite-replaced coral
fossil
Fossilized Shark Tooth or Bone Fragment
Vertebrate Fossil (likely Carcharodon or similar genus)
fossil
Petrified Wood
Silicified wood (Quartz/Chalcedony - SiO2)
sedimentary
Fossiliferous limestone
Bioclastic carbonate rock, primarily calcite (CaCO₃)
sedimentary
Fossil Coral
Scleractinia or Anthozoa (Fossilized)
fossil
Petrified Wood
Silicified Wood (SiO2)
mineral