Petrified Coral (Agatized Coral)
Fossilized Anthozoa (Silicon Dioxide replacement - SiO2)
fossil
Category
Fossil
Browse fossil specimens identified by the Rock Identifier community.
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Turtle Stone / Septarian Nodule (Fragment)
Septarian Concretion (Calcite, Aragonite, and Limestone)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Megalodon Shark Tooth
Otodus megalodon
fossil
Megalodon Shark Tooth
Otodus megalodon
fossil
Fossilized Echinoid / Sea Urchin Internal Mold
Echinoidea internal cast (steinkern)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Amber (Copal)
Succiniferous Resin
mineraloid
Fossilized Rugose Coral (Horn Coral)
Order Rugosa
fossil
Fossilized Shark Teeth in Matrix
Cretaceous Chondrichthyes (Shark) remains in Sedimentary Matrix
fossil
Fossiliferous Limestone (with Coralline Inclusions)
Calcium Carbonate (CaCO3)
sedimentary
Mosasaur Jaw Fossil in Matrix
Mosasaurus (family Mosasauridae) in Phosphate Sandstone
sedimentary
Crinoid Stem Fossil
Class Crinoidea (Phylum Echinodermata), often preserved in Limestone or Calcite (CaCO3)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Fossil Sand Dollar (Echinoidea)
Phylum Echinodermata, Class Echinoidea (likely Dendraster or Scutella)
sedimentary
Stromatolite (Fossiliferous Limestone)
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Fossilized Tabulate Coral (Honeycomb Coral)
Favosites (Order: Tabulata)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
mineral
Crinoid Stem Fossil
Crinoid columnal (Class Crinoidea)
sedimentary
Fossil Shark Tooth (Cretaceous white shark type)
Squalicorax (commonly known as Crow Shark)
Organic specimen (fossil)
Fossiliferous Limestone (Coquina)
Calcite (CaCO3) with Bioclastic inclusions
sedimentary
Petrified Wood
Silicified Wood (SiO2)
mineral
Fossiliferous limestone
Bioclastic limestone, chiefly calcite (CaCO₃), with fossil shell fragments
sedimentary
Fossilized Coral (Petoskey Stone / Hexagonaria)
Hexagonaria percarinata / Rugosa coral
fossil
Fossilized Wood / Petrified Wood
Petrified Wood (Silicified Flora)
fossil
Fossilized Coral (Petrified Coral)
Lithostrotionella (example genus) / Scleractinia
fossil
Sandstone with Dendritic Inclusions
Quartzose Sandstone
sedimentary
Petrified Wood
Silicified wood (primarily Quartz, SiO2)
fossil
Fossilized Horse Tooth
Equus ferus caballus (fossilized molar/premolar)
fossil
Fossilized Crinoid Stem in Matrix
Crinoid (Class: Crinoidea)
fossil
Mosasaur Tooth
Mosasauridae (likely Prognathodon or Mosasaurus species)
fossil
Petrified Wood
Silicified Wood (primarily SiO2)
fossil
Fossilized Gryphaea (Devil's Toenail)
Gryphaea arcuata (Bivalvia: Gryphaeidae)
fossil
Brachiopod Fossil in Limestone
Phylum Brachiopoda, Class Rhynchonellata
sedimentary
Amber (Burmite)
Fossilized tree resin (Succinite variant)
Organic mineraloid
Fossilized Shark Tooth
Fossilised Chondrichthyes dental specimen (likely Otodus or Carcharias sp.)
mineral
Fossilized Shark Tooth (Otodus obliquus)
Otodus obliquus (Mineral: Fluorapatite)
mineral
Fossilized Shark Tooth
Scapanorhynchus (Sand Tiger Shark relative)
sedimentary
Fossilized Gastropod Shell
Gastropoda (Class)
sedimentary
Belemnoit Fossil (Sea Squid Fossil)
Belemnitida (Order within Cephalopoda)
sedimentary