New fossil site in Taichoute, Morocco, suggests giant arthropods, up to 2 meters long, dominated the seas 470 million years ago. The site offers new insights into the Fezouata Biota and early life on Earth. A new fossil site in Taichoute, Morocco, reveals that giant arthropods dominated the seas
Fossils from the Fezouata Shale. From left to right, a non-mineralized arthropod , a palaeoscolecid worm, and a trilobite. Credit: Emmanuel Martin
Discoveries at a major new fossil site in Morocco suggest giant arthropods – relatives of modern creatures including shrimps, insects, and spiders – dominated the seas 470 million years ago. An international research team says the site and its fossil record are very different from other previously described and studied Fezouata Shale sites from 80km away.Large fragments of nektonic arthropods. Credit: Bertrand Lefebvre
because of its importance for understanding the evolution during the Early Ordovician period, about 470 million years ago. Professor Allison Daley, also from the University of Lausanne, added: “Animals such as brachiopods are found attached to some arthropod fragments, indicating that these large carapaces acted as nutrient stores for the seafloor dwelling community once they were dead and lying on the seafloor.”
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