fossil

Small fossil shell fragment, likely a foraminiferal or other marine microfossil

Unidentified calcareous fossil; exact taxon cannot be determined from the image

AI-generated identification · may be incorrect

Pale cream, finely patterned and roughly circular, with a rigid carbonate appearance. Hardness and crystal structure cannot be reliably determined visually; many such fossils are calcite-rich (Mohs 3).

Identified September 29, 2026More fossil →

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At a glance

Common name: Small fossil shell fragment, likely a foraminiferal or other marine microfossil
Scientific name: Unidentified calcareous fossil; exact taxon cannot be determined from the image
Category: fossil
Identified: September 29, 2026
Method: Standard

AI Estimated Value

Usually under $1–$5 for an unidentified common fragment; value depends on confirmed identification, provenance, and preservation.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Likely formed from a tiny marine organism’s calcium-carbonate shell, later buried and preserved in sediment; its geological age and source rock are unknown.

Uses & applications

Primarily of educational and collecting interest; microfossils are also used in biostratigraphy and reconstructing past environments.

Geological facts

Microfossils can be smaller than a grain of sand yet preserve distinctive chamber or shell patterns.

Field identification & locations

A magnifier may reveal repeating chambers or growth lines that help identify it. The image alone is insufficient to establish species, locality, or age.