Rare Phenomenon of Fossilized Spawning / Marine...

Exceptional Lot of 3 Specimens of Red Helmet Shells (Cypraecassis rufa) – Rare Phenomenon of Fossilized Inner Opening / Marine Concretions Description: Collectible specimens – exceptional and rare pieces I offer an exceptional lot consisting of three magnificent shell specimens (commonly called red helmets or Cypraecassis rufa), selected for their quality and a fascinating biological feature that makes them highly scientific and collectible items. The standout rare feature: Inside the aperture of these specimens, a remarkable and very rare natural phenomenon is observed: the preserved fossilized clusters of gastropod/marine organism eggs (natural concretions and calcareous tubes). This exceptional biological detail, rarely visible on the market, adds immense value for cabinet-of-curiosities collectors, malacologists, and natural history enthusiasts. Features and Dimensions (per piece): Number of pieces: 2 authentic specimens. Width: 13 cm Length: 10 cm Height: 8 cm Condition: Perfect natural state, spiraling structures very well defined, nacre and striations with a superb texture. Unique pieces, ideal to enrich a high-level collection or a unique cabinet of curiosities. The attached photos serve as proof of authenticity and highlight the internal phenomenon specific to each specimen.

估價:$1.12

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