Fossilized Coral (Petrified Coral)
Anthozoa fossil
fossil
Category
Sedimentary (Fossil)
Browse sedimentary (fossil) specimens identified by the Rock Identifier community.
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Limestone (Porous/Travertine variant)
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Fossiliferous Limestone
Carbonate sedimentary rock with trace fossils (CaCO3)
sedimentary
Crushed Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Fossiliferous Chert (Brachiopod/Bryozoan Fossil)
Microcrystalline quartz (SiO2) with fossil inclusions
sedimentary
Fossilized Shark Tooth
Elasmobranchii fossil (likely Odontaspididae family)
sedimentary
Fossiliferous Limestone (with Oyster Fossils)
Fossiliferous Calcarenite / Bivalve Mollusk Fossil
sedimentary
Fossiliferous Limestone (Bivalve Fossil)
Calcium Carbonate (CaCO3) with Bivalvia fossil
sedimentary
Fossilized Megalodon Tooth Fragment
Otodus megalodon (Carcharocles megalodon fossil)
sedimentary
Limestone with Chert
Calcium Carbonate (CaCO3) with Silica (SiO2) inclusions
sedimentary
Sandstone
Clastic Sedimentary Rock (composed mostly of SiO2)
sedimentary
Petrified Wood
Silicified Wood / Xylopal (SiO2)
fossil
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
sedimentary
Fossiliferous Limestone (Coquina)
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Fossil Belemnite Guard
Belemnitida (Order), often Hibolites or Neohibolites spp.
fossil
Sandstone with Quartz Vein
Arenite with hydrothermal quartz intrusion
sedimentary
Botiroidal Chalcedony or Silicified Fossil Coral
Silicon Dioxide (SiO2) - Chalcedony / Scleractinia (if fossilized)
sedimentary
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Sandstone
Arenite (Clastic Sedimentary Rock)
sedimentary
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, SiO2)
fossil
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Fossil Shark Tooth (Otodus obliquus)
Otodus obliquus; hydroxyapatite (mineralized form Ca5(PO4)3(OH))
sedimentary (fossiliferous)
Sandstone (Red Sandstone)
Arenite (predominantly SiO2 with Fe2O3 cement)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone Pebble
Arenite (primarily SiO2)
sedimentary
Manganese Oxide Crust on Limestone
Manganese Oxides (e.g., Pyrolusite MnO2 or Romanechite) on CaCO3
sedimentary
Shale
Laminated Mudstone (Shale)
sedimentary
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
sedimentary
Shale
Fissile mudstone (Shale)
sedimentary
Red Sandstone
Arenite (Iron-rich Sandstone)
sedimentary
Red Sandstone
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
sedimentary
Fossilized Horse Tooth
Equus sp. (Tooth)
fossil
Petrified Wood
Silicified Wood (SiO2)
mineral
Petrified Wood with Lichen
Silicified Wood (SiO2) colonized by crustose lichens
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (Silicon Dioxide - SiO2)
fossil
Petrified Wood
Silicified Wood (SiO2 / Quartz pseudomorph after wood)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified wood (principally SiO2)
fossil
Petrified Wood
Silicified Wood (primarily SiO2)
fossil