Fossil Sea Snail

Gastropoda cf. Conus or Buccinum species • Body fossil, invertebrate gastropod

Fossil Sea Snail

Geological Period

Neogene

Estimated Age

2.5 to 23 million years

Preservation Type

Original aragonite/calcite shell preservation with minor surface recrystallization and mineral staining

Condition Assessment

Good, nearly complete with minor wear on the apex and aperture lip, retaining structural integrity

Taxonomic Classification

Phylum: Mollusca, Class: Gastropoda, Order: Neogastropoda, Family: Conidae or Buccinidae

Morphological Description

Elongated, fusiform shell with a high spired apex, narrow elongated aperture, and smooth outer whorls showing remnants of original coloration patterns.

Rock Matrix

Free of matrix (cleaned specimen), originally likely from a marine clay or marl deposit

Formation & Location

Coahulla Formation or similar Neogene coastal deposits, worldwide distribution

Size & Dimensions

Approximately 3 cm in length, fitting well within the standard size range for small fossil neogastropods

Value & Rarity

Estimated Market Value

$5 - $15

Auction Estimate

$10 - $25

Rarity Assessment

Common

Scientific Significance

Provides evidence of Cenozoic shallow marine ecosystems, paleotemperatures, and benthic community structures

Preparation Recommendations

Gentle mechanical cleaning with a soft brush, no aggressive acid treatment, store in a stable, dry environment

Notable Features

Retains delicate yellowish-brown color banding patterns on the outer shell layer, which is unusual for older fossil shells

Identified on 10/5/2026