Gastropod Fossil
Phylum Mollusca, Class Gastropoda (Calcium Carbonate, CaCO3)
sedimentary
Category
Fossil
Browse fossil specimens identified by the Rock Identifier community.
Sandstone (Red)
Arenite (primarily SiO2 with Fe2O3)
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide Fe2O3 cement)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Chert (Nodule)
Cryptocrystalline Quartz (SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide cement)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (with Arkose characteristics)
Clastic sedimentary rock (SiO2 with KAlSi3O8)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (likely Quartzose Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Limestone with Secondary Mineralization
Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone with Trace Fossils
Arenite / Quartzwacke with Ichnofossils
sedimentary
Siderite Concretion
Ironstone (Siderite) Concretion, FeCO3
sedimentary
Fossiliferous Limestone
Fossiliferous Calcarenite (CaCO3)
sedimentary
Coquina or Fossiliferous Limestone
Biogenic Limestone (Calcite/Aragonite CaCO3)
sedimentary
Bivalve Fossil in Sedimentary Matrix
Fossiliferous Mudstone (Class: Bivalvia)
sedimentary
Coquina / Fossiliferous Limestone
Calcareous bioclastic sedimentary rock (CaCO3)
sedimentary
Fossiliferous Limestone with Brachiopod
Limestone (Calcium Carbonate, CaCO3) with Phylum Brachiopoda fossil
sedimentary
Fossiliferous Shale
Laminated Mudrock with plant fossils
sedimentary
Fossiliferous Limestone
Biogenic Limestone (CaCO3)
sedimentary
Fossiliferous Limestone
Limestone (CaCO3 with Bioclasts)
sedimentary
Fossiliferous Chert (with Fossil Shells)
Silicon Dioxide (SiO2) with biogenic inclusions
sedimentary
Larimar and Fossil Coral
Pectolite (NaCa2Si3O8(OH)) and Hexagonaria/Petoskey Stone
mineral and sedimentary
Amber
Succiniferous fossil resin (C10H16O)
fossil
Fossiliferous Shale or Slate with Plant Fossils
Fossil-bearing argillaceous rock
Sedimentary/Metamorphic
Fossiliferous Limestone
Limestone with fossil inclusions (CaCO3)
sedimentary
Kambaba Jasper
Rhyolite (with Stromatolite fossil inclusions)
sedimentary
Fossilized Shark Tooth (Sand Tiger)
Carcharias taurus (fossil specimen)
sedimentary
Amber (specifically Burmese Amber or Burmite)
Succiniferous fossil resin (C10H16O)
mineraloid
Ferruginous Sandstone Concretion (Ironstone Phosphorite)
Ferruginous Sandstone (variable Fe-oxide/hydroxide composition)
sedimentary
Brachiopod Fossil in Shale
Phylum Brachiopoda (often species of Order Spiriferida or Rhynchonellida)
sedimentary
Fossiliferous Limestone
Calcium Carbonate - CaCO3
sedimentary
Fossiliferous Rock (likely Dinosaur Fossil in Matrix)
Permineralized Vertebrate Fossil (Calcium Carbonate/Silica replaced bone material)
sedimentary
Petoskey Stone
Hexagonaria percarinata (Fossilized colonial coral)
sedimentary
Fossiliferous Limestone
Bioclastic Limestone (composition: CaCO3)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary