Several thousand years ago, someone’s eye chanced across a boulder, & saw something out of place… This ancient human tapped & prodded the mysterious stone until suddenly part fell away, revealing a beautiful, & clearly incongruous, perfect spiral… surely not of earthly origin! This ammonite concretion keychain celebrates one of nature’s enduring wonders. How amazed would ancients have been to know that “ammonites” (named for the ram’s horns sometimes pictured on the god Ammon) were, in fact, the preserved shells of cephalopod molluscs (related to squid & octopus)? Although no ammonites live today, they left behind a wonderful legacy of fossils, which are often found, as depicted here, in the form of a “nodule”, or “concretion.” Our ammonite concretion keychain is assembled in three articulating parts, evoking the process of discovery. A great gift for paleontologists & other fossil hunters, as well as fans of squid, octopus, nautiloids, & the other amazing cephalopods! Comes with a colorful scientific diagram explaining ammonite taphonomy (fossil forming process) Weight: 22.0 Grams Dimensions: 2.8 cm high x 2.4 cm wide x 1.0 cm deep Ammonite Concretion Keychain - Fossil Nodule, Paleontology