RARE PLEISTOCENE FOSSIL CLAM SPECIMEN (TRIDACNA GIGANTEA) Pleistocene to Late Holocen (2.58 million years ago – 11,700 years ago) An exceptionally preserved fossil specimen of Tridacna gigantea, the prehistoric progenitor to modern giant clams, dating to the Pliocene to Early Pleistocene epoch (approximately 2.5 to 5 million years B.P.). Originating from Indo-Pacific marine fossil deposits, this fossilized bivalve displays the iconic heavy, thick-walled shell architecture characteristic of giant marine megafauna. Key Features & Characteristics: Massive Shell Structure: Features deeply folded, thick-ribbed radial valves engineered to withstand intense ancient reef currents. Distinct Morphology: Exhibiting exaggerated, highly pronounced ridges and a broad hinge line, distinguishing it from its modern relative (Tridacna gigas). Mineralization & Coloration: Beautifully fossilized with heavy calcification, displaying warm mineral patinas ranging from creamy ivory and iron-stained ochres to deep earthy grey hues. Scale & Presence: A dramatic statement piece of prehistoric marine natural history, suitable for advanced private collections, museum displays, or high-end interior curation. A beautiful artistic display for the curio cabinet and natural history of the ocean lover. Important: Does not come with stand. Seller will pack to the best interest of the buyer with utmost confidence and assurance. Any possible misrepresentation is untended and deeply regretted.