User:Abyssal/Prehistory of Europe/Selected picture/24
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A pyritized fossil shell of the amaltheid ammonoid Pleuroceras solare. The shell dates back to the Pliensbachian age (182.7–190.8 million years ago) of the Early Jurassic epoch and is about 3.2 cm in diameter. It was collected near Little Switzerland, Germany.
Photo credit: H. Zell