Fossilized Coral (Favosites)
Favosites goldfussi
fossil
Category
Sedimentary (Fossilized)
Browse sedimentary (fossilized) specimens identified by the Rock Identifier community.
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Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Sandstone
Arenite
sedimentary
Fossil oyster shell
Fossilized bivalve, commonly Ostrea or Crassostrea
fossil
Fossilized Oyster in Flint
Gryphaea or Exogyra embedded in SiO2 (Flint/Chert)
fossil
Amber
Succinite (Resinite)
fossil
Amber (specifically Burmese Amber or Burmite)
Succiniferous fossil resin (C10H16O)
mineraloid
Staghorn Coral Specimen
Acropora cervicornis (Calcium Carbonate, CaCO3)
sedimentary
Fossil Sponge / Horn Coral / Crinoid Stem
Phylum Porifera or Cnidaria fossilized in calcium carbonate / silica
fossil
Fossilized Brachiopod or Gastropod in Chert/Limestone
Phylum Brachiopoda / Mollusca
fossil
Fossilized bivalve shell
Molluscan bivalve fossil; shell originally composed of calcium carbonate (aragonite/calcite, CaCO₃)
fossil
Sandstone (Quartz Arenite)
Sandstone (SiO2 with possible mineral cements)
sedimentary
Fossilized bivalve shell
Fossil mollusk, likely an oyster or similar bivalve; original shell composed of calcium carbonate (aragonite/calcite)
fossil
Red Shale
Lutite (primarily composed of Hydrous Aluminum Silicates with Hematite staining)
sedimentary
Peanut Wood
Silicified (Petrified) Wood - SiO2 (Silicon Dioxide)
sedimentary
Fossil Shark Tooth
Selachimorpha (Chondrichthyes dental fossil)
sedimentary
Fossil ammonite or gastropod cast
Ammonoidea or fossil gastropod; exact identification requires clearer details
fossil
Fossilized Oyster Shell
Exogyra or Ostrea (Gryphaeidae/Ostreidae family)
fossil
Fossilized Shark Tooth
Chondrichthyes (Class) fossil
fossil
Fossilized Mosasaur Tooth
Mosasauridae (likely Prognathodon or Mosasaurus)
fossil
Fossilized Brachiopod Shell
Order Spiriferida (likely)
fossil
Echinoid Fossil in Flint or Chert Nodule
Echinoidea embedded in sedimentary silica (SiO2)
fossil
Fossiliferous Limestone
Calcareous biomicrite / Calcium Carbonate (CaCO3)
sedimentary
Polished petrified wood
Silicified wood (quartz/chalcedony, SiO₂)
fossil
Fossilized Shark Tooth
Carcharodon carcharias (fossilized) / Hydroxyapatite permineralized with silica or iron
sedimentary
Sandstone
Arenite (Siliclastic sedimentary rock)
sedimentary
Fossil shell fragment
Indeterminate marine mollusk shell; likely calcitic or aragonitic shell material (CaCO₃)
fossil
Fossilized Shark Tooth
Chondrichthyes (class)
fossil
Fossilized Shark Tooth
Selachii (Elasmobranchii subclass)
fossil
Chert (River Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Baltic Amber (Butterscotch or Egg Yolk Variety)
Succinite (C10H16O)
Organic Gemstone (fossilized resin)
Kambaba Jasper
Stromatolite (Microbial mat fossil in silicified sediment)
sedimentary
Amber
Succinite
mineral
Favosites Fossil (Honeycomb Coral)
Favosites sp. (Extinct genus of tabulate coral)
sedimentary
Fossil scallop shell
Scallop (family Pectinidae); shell composed chiefly of calcite and/or aragonite (CaCO₃)
fossil
Fossilized Shark Tooth
Chondrichthyes tooth
fossil
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Fossilized Sand Dollar
Echinoidea (Clypeasteroida)
fossil
Polished fossiliferous limestone pebble
Fossiliferous micritic limestone, probably containing gastropod or bivalve fragments
sedimentary
Sandstone
Quartz Arenite
sedimentary
Ironstone Concretion (Limonite/Goethite)
Iron oxide concretion (contains FeO(OH)·nH2O)
sedimentary
Coquina Jasper
Fossiliferous Chalcedony (SiO2)
sedimentary