Sandstone (Red/Brown Variety)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Category
Sedimentary (Fossil)
Browse sedimentary (fossil) specimens identified by the Rock Identifier community.
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Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Seashell Fossil
Mollusca (Bivalvia)
fossil
Fossil Coral
Rugosa or Tabulata coral fossil
fossil
Gastropod Fossil
Phylum Mollusca, Class Gastropoda (Calcium Carbonate, CaCO3)
sedimentary
Kambaba Jasper
Rhyolite (Volcanic rock) or Stromatolite (debated)
Igneous/Sedimentary (debated)
Dinosaur Claw (Dromaeosaurid)
Dromaeosaurid ungual (potential Deinonychus or Velociraptorine)
fossil
Fossil Coral
Rugosa or Tabulata / Hexacorallia (replaced with silica or calcite)
fossil
Belemite Rostrum
Belemnoidea (Order)
fossil
Fossiliferous Limestone
Calcium Carbonate - CaCO3
sedimentary
Shark Tooth Fossil
Vertebrate fossilized tooth
fossil
Sandstone
Arenite (predominantly SiO2)
sedimentary
Sandstone
Arenite (Clastic Sedimentary Rock)
sedimentary
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Fossilized Shark Tooth
Chondrichthyes tooth
fossil
Coquina / Fossiliferous Limestone
Bioclastic Limestone (CaCO3)
sedimentary
Fossilized shell fragment
Indeterminate fossil mollusk; likely a silicified or mineral-replaced bivalve/gastropod fragment
fossil
Brachiopod Fossil
Phylum Brachiopoda (replaced by Calcite or Silica)
sedimentary
Crinoid Fossil in Chert
Siliceous limestone with Crinoidea fossil (SiO2)
sedimentary
Mosasaur Tooth
Mosasauridae (likely Prognathodon or Mosasaurus species)
fossil
Murex Fossil
Muricidae (Calcium Carbonate fossilization)
fossil
Ammonite Fossil
Ammonoidea
fossil
Fossil Shell (Bivalve)
Phylum Mollusca, Class Bivalvia
fossil
Fossil Shell in Sedimentary Matrix
Bivalvia (fossil) in Calcium Carbonate Matrix
sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sand Tiger Shark Tooth
Carcharias taurus
fossil
Amber (Copal)
Succiniferous Resin
mineraloid
Fossil Shark Tooth (Cretaceous white shark type)
Squalicorax (commonly known as Crow Shark)
Organic specimen (fossil)
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (likely Quartzose)
Arenite (SiO2 principal mineral)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Limestone
Calcium carbonate (CaCO3)
sedimentary
Crinoid Fossil
Crinoidea (Echinodermata)
fossil
Fossiliferous Limestone
Biogenic Sedimentary Rock (CaCO3)
sedimentary
Fossil-bearing sedimentary rock, possibly fossil wood or bone
Indeterminate silicified/carbonate fossil in sandstone or mudstone
fossil
Fossilized Shark Tooth
Chondrichthyes (Class) fossilized tooth
fossil
Sandstone or Weathered Conglomerate
Sedimentary Rock (Quartzose Sandstone / Lithic Arenite)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Fossilized Coral
Rugose coral / Tabulate coral fossil in limestone matrix
fossil
Fossilized Bone / Dinosaur Fossil
Fossilized vertebrate bone (permineralized)
fossil