
Likely water-worn bone or fossil fragment
Indeterminate fossilized bone; species and age cannot be determined from the image
AI-generated identification · may be incorrectCream-to-ochre, rounded and pitted surface with small cavities; likely mineralized bone, but texture and composition are not confirmable visually. Hardness, luster, and crystal structure are unknown.
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Probable fossil-bearing rock or mineral concretion
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Crinoid Stem Fossil in Matrix
Phylum Echinodermata, Class Crinoidea
Fossiliferous limestone (likely a crinoidal or shell-fragment limestone)
Bioclastic limestone, composed chiefly of calcite (CaCO₃)
Fossil oyster shell
Oyster (family Ostreidae); shell composed chiefly of calcite (CaCO₃)
Weathered fossil bone fragment (identification uncertain)
Fossilized bone; exact taxon and mineral composition cannot be determined from the image