Ammonites Asteroceras confusum (large specimen) and Promicroceras planicosta. Ammonites are extinct marine animals which lived between 380 and 65 mill
Ammonites Asteroceras confusum (large specimen) and Promicroceras planicosta. Ammonites are extinct marine animals which lived between 380 and 65 million years ago. They are distantly related to the modern-day nautilus. Ammonites are known as zone fossils which means that certain species appear in specific geological formations, allowing accurate dating. This fossil was found in the lower lias rock of Lyme Regis, England. Lower lias is limestone rock which was laid in the early Jurassic period (195-172 million years ago). From the collection of Andy Cowap called Classic Jurassic.
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Photo credit: © S. STAMMERS, PREPARED BY ANDY COWAP/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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