Fossil Shell
Brachiopod or Mollusk fossil
fossil
Category
Mineralized Fossil
Browse mineralized fossil specimens identified by the Rock Identifier community.
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Brachiopod Fossil
Rhynchonellida (Order)
sedimentary
Sandstone Concretion
Sedimentary Concretion (Quartz sand bound by mineral cement)
sedimentary
Siderite Concretion (Nodule)
Iron Carbonate (FeCO3) Concretion
sedimentary
Concretion in Shale
Siltstone/Shale with Siderite or Calcareous concretions
sedimentary
Fossil Coral
Anthozoa (Scleractinia)
fossil
Fossilized Trilobite Pygidium / Glabella Fragment
Trilobita (e.g., Phacops or Ceraurus sp.)
fossil
Ironstone Concretion
Siderite or Hematite Concretion (FeCO3 or Fe2O3)
sedimentary
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Fossilized Bone
Permineralized Vertebrate Bone
fossil
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Pyrite (FeS2)
mineral
Turritella Agate (Elimia Agate)
Silicified Elimia tenera (formerly misidentified as Turritella)
sedimentary (silicified fossiliferous chalcedony)
Crinoid Fossil Fragment
Crinoid stem fossil (Echinodermata)
fossil
Belemnite Fossil (Guardsman Fossil)
Belemnitella spp. (Rostrum)
fossil
Fossiliferous Brachiopod in Shale
Brachiopoda (Phylum) preserved in Carbonaceous Shale
sedimentary
Fossil Snail
Gastropoda (fossilized)
fossil
Polished fossilized ammonite or nautiloid shell
Ammonoidea or Nautiloidea; originally aragonitic shell, commonly replaced by calcite or chalcedony
fossil
Fossiliferous Limestone containing a Brachiopod or Mollusk Impression
Biogenic Sedimentary Rock / Fossiliferous Limestone
sedimentary
Fossil Shark Tooth
Carcharhinidae or Lamniformes sp. (possibly Carcharodon or Otodus genus)
fossil
Petrified Wood
Silicified wood (Quartz, SiO2)
metamorphic
Fossil Crab
Decapoda (likely Avitelmessus or Raninidae family)
sedimentary
Mammoth Molar Fossil
Mammuthus primigenius (Tooth fragment)
fossil
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Fossiliferous Limestone with Crinoid Stem
Sedimentary Rock with Echinodermata fossil fragment
fossil
Fossilized Nut / Coprolite / Concretion
Trace Fossil / Permineralized Plant Material
fossil
Fossil Shark Tooth
Otodus sp. (Eocene shark fossil)
fossil
Fossil Sea Urchin / Echinoid
Class Echinoidea
fossil
Fossilized Shark Tooth
Elasmobranchii (tooth fossil, composed mainly of Bioapatite / Calcium Phosphate)
fossil
Mammoth or Mastodon Tooth Fossil
Mammuthus / Mammut tooth
fossil
Dinosaur Fossil Tooth
Vertebrate Fossilized Tooth
fossil
Fossil Shark Tooth
Chondrichthyes (Class)
fossil
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Scallop Shell Fossil
Pecten sp.
fossil
Fossil Shark Tooth
Selachii (fossilized dentition)
fossil
Fossilized Gastropod Steinkern
Class Gastropoda internal mold
fossil
Fossil Sponge / Horn Coral / Crinoid Stem
Phylum Porifera or Cnidaria fossilized in calcium carbonate / silica
fossil
Fossilized Brachiopod Shell Fragment
Brachiopoda (Class: Rhynchonellata or Strophomenata)
fossil
Peanut Wood
Petrified Wood (Silicified Araucaria with Teredo boreholes)
fossil
Crinoid Stem Fragment
Crinoid (Class Crinoidea)
fossil
Fossilized Gastropod in Limestone
Gastropoda (Class) in Calcium Carbonate (CaCO3)
sedimentary
Lepidodendron Fossil in Sandstone
Lepidodendron (Lycophytina, Lepidodendrales)
sedimentary