Polished Nautilus fossil from Madagascar

Updated October 16, 2026

Lot number25
AuctionRust, Glory, Timber & Trophy Collectible Online Auction
DateOctober 25, 2026 at 6:00 PM EDT
Auction house2nd Rodeo LLC
LocationSt. Joseph, Michigan

polished nautilus fossil originates from the Albian stage of the Middle Cretaceous period, approximately 100-113 million years ago, from Madagascar. Nautiloids are ancient cephalopods that have existed for over 500 million years, with modern nautilus species being living fossils that closely resemble their prehistoric ancestors. The distinctive chambered shell structure visible in this specimen showcases the creature's growth pattern and buoyancy control system. Polished nautilus fossils like this one became popular collectibles in the late 20th century as Madagascar's fossil deposits became more accessible to international markets. These specimens appeal strongly to fossil collectors, natural history enthusiasts, and interior designers who value their aesthetic beauty and scientific significance. The polished surface reveals the intricate internal chamber structure and often displays iridescent colors, making them highly sought after as both educational specimens and decorative objects. Collectors appreciate these fossils for their excellent preservation, visual appeal, and the window they provide into ancient marine ecosystems.

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