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Flat spiral shell (like classic ammonites), but also atypical evolutionary forms: involutes, irregular coils (heteromorphs: Baculites , Turrilites )
Fossil color
Variable depending on fossilization: brown, gray, black, golden pyrite, sometimes iridescent ( ammolite , Canada)
Dimension
From a few cm to more than 2 m ( Parapuzosia seppenradensis = largest known ammonite)
Main deposits
France (Charente, Aveyron, Normandy), Germany, Morocco, Canada (Alberta), Madagascar
Scientific interest
Stratigraphic reference fossils → dating of Cretaceous layers, study of the evolution of cephalopods
Virtue (fossil lithotherapy)
Grounding, prosperity, abundance, cycle of life and death, spiritual opening
Astrological sign
Capricorn, Taurus, Scorpio
Purification
Clear fresh water, fumigation (sage, incense), avoid salt (fragile fossil)
Recharge
Moonlight, contact with the earth, quartz geode
Short story / legend
Cretaceous ammonites are the last representatives of this group before their extinction at the end of the Secondary Era (Cretaceous–Paleogene crisis, ~66 Ma). Some iridescent varieties from Canada (ammolite) have become recognized gemstones in jewelry.
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