Obsidian and Fossilized Shark Tooth
Obsidian (Volcanic Glass) and Otodus sp. (Fossilized shark tooth)
igneous and fossil
Category
Igneous And Fossil
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Crinoid Stem Fossil in Matrix
Phylum Echinodermata, Class Crinoidea
fossil
Kambaba Jasper
Rhyolite (Volcanic rock) or Stromatolite (debated)
Igneous/Sedimentary (debated)
Sedimentary Outcrop (Sandstone/Shale)
Sedimentary bedrock formation (variable composition)
sedimentary
Chert with Fossil Brachiopod
Microcrystalline Quartz (SiO2) with Calcitic Brachiopod inclusion
sedimentary
Fossiliferous Limestone
Fossiliferous Calcilutite / Biomicrite
sedimentary
Fossiliferous Limestone
Biogenic Limestone with Brachiopod/Crinoid fragments
sedimentary
Horn Coral (Rugose Coral)
Order Rugosa (extinct)
fossil
Fossilized Crinoid Stem in Limestone
Crinoidea (Class) in Calcium Carbonate (CaCO3) matrix
fossil
Fossiliferous Limestone
Limestone with embedded fossil cross-section
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Fossiliferous Limestone with Crinoid stems
Limestone (CaCO3) containing Crinoidea fossils
sedimentary
Crinoid Fossil in Limestone
Crinoidea fossil (stalk segments) in Calcium Carbonate (CaCO3) matrix
sedimentary
Fossilized Shark Tooth (likely Sand Tiger Shark)
Carcharias taurus (fossilized hydroxyapatite/calcium phosphate)
fossil
Fossilized Shark Tooth (Partial) or Coprolite
Elasmobranchii (fossil) or Coprolite (trace fossil)
fossil
Fossil Shark Tooth
Carcharodon or Carcharias fossil (Vertebrate Fossil)
sedimentary
Crinoid Stalk in Limestone
Crinoid fossil in Biomicrite (Limestone)
sedimentary
Pyrite
Iron Disulfide (FeS2)
mineral
Fossilized Bone Chunk
Permineralized Vertebrate Bone (indeterminant)
fossil
Devil's Toenail (Fossil Oyster)
Gryphaea arcuata (Calcium Carbonate, CaCO3)
sedimentary
Fossil Bone Fragment
Petrified bone (permineralized hydroxyapatite)
fossil
Fossilized Gastropod in Limestone
Gastropoda (Class) in Fossiliferous Limestone
sedimentary
Fossiliferous Limestone (Crinoidal)
Calcite-bearing bioclastic packstone (CaCO3)
sedimentary
Orthoceratid Fossil in Limestone
Orthoceras (extinct genus of Nautiloid Cephalopod)
sedimentary
Fossilized Echinoid (Sea Urchin)
Echinoidea (Fossil)
sedimentary
Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
fossil
Fossilized Gastropod Internal Mold
Steinkern (Mollusca: Gastropoda)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Fossiliferous Limestone with Rugose Coral
Calcium Carbonate (CaCO3) featuring Rugosa (extinct order of solitary and colony corals)
sedimentary
Fossilized Bivalve in Limestone
Class Bivalvia within Sedimentary Matrix (likely CaCO3)
fossil
Bivalve Fossil (Clam Fossil)
Class Bivalvia (likely Gryphaea or similar Order)
fossil
Fossil Crab
Decapoda (likely Avitelmessus or Raninidae family)
sedimentary
Bivalve Fossil (Clam)
Class Bivalvia (e.g., Exogyra or Gryphaea species)
fossil
Chalcedony (Common Opal variant)
Silicon dioxide (SiO2) with varying levels of hydration
mineral
Turritella Agate (Elimia Agate)
Silicified Elimia tenera (formerly misidentified as Turritella)
sedimentary (silicified fossiliferous chalcedony)
Fossiliferous Brachiopod in Shale
Brachiopoda (Phylum) preserved in Carbonaceous Shale
sedimentary
Fossiliferous Sandstone (with Brachiopod or Bivalve mold)
Clastic Sedimentary Rock with Macrofossil Mold
sedimentary
Crinoid Stem Fossil in Matrix
Crinoid (Class Crinoidea) in Limestone/Siltstone matrix
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Brachiopod Fossil
Phylum Brachiopoda (order potentially Spiriferida)
fossil
Bivalve Fossil (Internal Mold)
Bivalvia (Phalladomya or similar genus)
fossil