Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary (Fossil)
Browse sedimentary (fossil) specimens identified by the Rock Identifier community.
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Dinosaur Claw Fossil
Fossilized Theropod Claw (Vertebrate Palaeontological Specimen)
fossil
Coral Fossil (Agatized Coral or Petoskey Stone)
Hexagonaria percarinata (if Petoskey) or generally Scleractinia (Agatized Coral)
Sedimentary/Fossil
Fossilized Coral
Anthozoa (Fossilized)
Sedimentary / Fossil
Trilobite Pygidium (Tail Segment)
Phylum Arthropoda, Class Trilobita (likely order Phacopida)
sedimentary (fossil)
Fossilized Shark Tooth (Otodus obliquus)
Otodus obliquus (Mineral composition: Bio-apatite/Calcium Phosphate replaced by various minerals)
sedimentary (fossil)
Fossilized Sea Urchin (Echinoid)
Echinoidea (Class); commonly Clypeasteroida for sand dollar types
sedimentary (fossil)
Dinosaur Bone
Agatized Dinosaur Bone
sedimentary/fossil
Fossilized Sand Tiger Shark Tooth
Carcharias taurus / Striatolamia macrota (mineralized as Hydroxylapatite/Francolite)
sedimentary (fossil)
Petrified Wood
Fossilized wood / Silicified wood
Sedimentary / Fossil
Kambaba Jasper
Stromatolite
sedimentary/fossil
Sedimentary Outcrop (Sandstone/Shale)
Sedimentary bedrock formation (variable composition)
sedimentary
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
fossil
Fossiliferous Limestone (or Bryozoan/Coral Fossil Pebble)
Biogenic Sedimentary Rock (Calcium Carbonate, CaCO3)
sedimentary
Crinoid Stem Fossil in Matrix
Phylum Echinodermata, Class Crinoidea
fossil
Chert with Fossil Brachiopod
Microcrystalline Quartz (SiO2) with Calcitic Brachiopod inclusion
sedimentary
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Weathered fossiliferous sandstone or mudstone cobble
Lithified siliciclastic sediment; the raised curved feature may be a trace fossil or shell impression
sedimentary
Fossilized Crinoid Stem in Limestone
Crinoidea (Class) in Calcium Carbonate (CaCO3) matrix
fossil
Weathered limestone or calcareous sandstone
Calcite-rich carbonate rock, chiefly calcium carbonate (CaCO₃), possibly fossiliferous limestone
sedimentary
Crinoid Fossil in Limestone
Crinoidea fossil (stalk segments) in Calcium Carbonate (CaCO3) matrix
sedimentary
Fossiliferous Limestone
Limestone with embedded fossil cross-section
sedimentary
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
fossil
Likely vertebra fossil or bone fragment
Indeterminate fossilized vertebra; mineralized hydroxyapatite, commonly Ca₅(PO₄)₃(OH)
fossil
Fossiliferous Limestone with Crinoid stems
Limestone (CaCO3) containing Crinoidea fossils
sedimentary
Seashell Fossil
Gastropoda fossil
fossil
Fish Fossil in Limestone
Lycoptera (likely) in Micritic Limestone
sedimentary
Fossil Shell
Invertebrate fossil (Mollusca)
fossil
Fossiliferous Limestone
Fossiliferous Calcilutite / Biomicrite
sedimentary
Fossil Brachiopod or Mollusk Cast
Phylum Brachiopoda / Mollusca internal mold
fossil
Fossilized Shark Tooth
Chondrichthyes (Class) fossil
fossil
Fossilized Coral
Cnidaria (Hexacorallia)
fossil
Fossiliferous Limestone
Biogenic Limestone with Brachiopod/Crinoid fragments
sedimentary
Fossilized Bivalve Shell
Class Bivalvia (fossilized)
fossil
Fossilized Shark Tooth (Partial) or Coprolite
Elasmobranchii (fossil) or Coprolite (trace fossil)
fossil
Fossil Belemnite Guard
Belemnitella spp. (rostrum)
fossil
Fossil Shark Tooth
Selachii fossil
fossil
Fossilized Gastropod in Limestone
Gastropoda (Class) in Fossiliferous Limestone
sedimentary
Fossil Snail Shell (Embedded in Resin)
Gastropoda fossil
fossil
Fossiliferous limestone
Bioclastic carbonate rock, primarily calcite (CaCO₃)
sedimentary
Starfish Fossil
Asteroidea fossil
fossil
Scallop Shell Fossil
Pecten sp.
fossil