Rock Identifier
Tooth fossil, likely mammalian or reptilian fragment (Indeterminate fossilized tooth; enamel and dentine, taxon unresolved) — fossil
fossil

Tooth fossil, likely mammalian or reptilian fragment

Indeterminate fossilized tooth; enamel and dentine, taxon unresolved

AI-generated identification · may be incorrect

Cream-white, rounded tooth crown with a pinkish-brown worn or stained surface and porous-looking root; hardness is roughly 5–6 for enamel, with no visible crystal cleavage. The specimen appears partly mineralized rather than a crystalline mineral.

Identified More fossil →
Explore Tooth fossil, likely mammalian or reptilian fragment in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App StoreGoogle Play

Physical properties

Cream-white, rounded tooth crown with a pinkish-brown worn or stained surface and porous-looking root; hardness is roughly 5–6 for enamel, with no visible crystal cleavage. The specimen appears partly mineralized rather than a crystalline mineral.

Formation & geological history

Likely formed as biological tooth material later buried and mineralized through groundwater replacement, potentially during the Cenozoic; exact age cannot be determined from the photograph. Identification requires magnification, locality, and comparison with tooth anatomy.

Uses & applications

Primarily a curiosity or educational/collector specimen; value depends strongly on confirmed species, completeness, provenance, and preservation.

Geological facts

The smooth, extremely hard outer enamel and contrasting softer dentine are typical of teeth, while the irregular root-like extension supports a tooth interpretation rather than a stone.

Field identification & locations

Found in sedimentary deposits, river gravels, caves, and fossil beds worldwide; inspect for enamel–dentine layering, a pulp cavity, roots, and patterned crowns. Avoid acid or aggressive cleaning, which can damage enamel and obscure diagnostic features.

More like this

Other fossil specimens

Probable fossil-bearing rock or mineral concretion (Unidentified carbonate-rich concretion with a possible fossil inclusion) — fossil

Probable fossil-bearing rock or mineral concretion

Unidentified carbonate-rich concretion with a possible fossil inclusion

fossil
Likely fossil oyster shell (Fossilized bivalve shell; exact species cannot be identified from the image) — fossil

Likely fossil oyster shell

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

fossil
Crinoid Stem Fossil in Matrix (Phylum Echinodermata, Class Crinoidea) — fossil

Crinoid Stem Fossil in Matrix

Phylum Echinodermata, Class Crinoidea

fossil
Fossiliferous limestone (likely a crinoidal or shell-fragment limestone) (Bioclastic limestone, composed chiefly of calcite (CaCO₃)) — sedimentary

Fossiliferous limestone (likely a crinoidal or shell-fragment limestone)

Bioclastic limestone, composed chiefly of calcite (CaCO₃)

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

Porous limestone pebble

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

sedimentary
Weathered fossil bone fragment (identification uncertain) (Fossilized bone; exact taxon and mineral composition cannot be determined from the image) — fossil

Weathered fossil bone fragment (identification uncertain)

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

fossil