fossil

Fossilized Fish Vertebra

Vertebrata

Hardness typically 5 on Mohs scale due to mineral replacement. Color ranges from tan to brown or amber. Luster is vitreous to dull.

Identified October 28, 2026More fossil →

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Physical properties

Hardness typically 5 on Mohs scale due to mineral replacement. Color ranges from tan to brown or amber. Luster is vitreous to dull.

Formed via permineralization where organic bone material is gradually replaced by minerals like silica or calcite over millions of years.

Valued primarily as a paleontological specimen, educational tool, and collector item in amateur and professional paleontology.

Fossilized vertebrae provide critical insights into ancient marine and terrestrial ecosystems, often preserving intricate cellular bone structure.

Found globally in sedimentary rock formations rich in ancient marine deposits, identified by distinct disc-like shapes and internal canal structures.

Probable fossil-bearing rock or mineral concretion

Unidentified carbonate-rich concretion with a possible fossil inclusion

Likely fossil oyster shell

Fossilized bivalve shell; exact species cannot be identified from the image

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)

Porous limestone pebble

Calcite-rich limestone (primarily CaCO₃); exact identification is uncertain from the image

Weathered fossil bone fragment (identification uncertain)

Fossilized bone; exact taxon and mineral composition cannot be determined from the image