Spiny Ceratarges Trilobite Fossil on Matrix from Morocco (299.6 grams) libyan glass pendant the shark grew larger and

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Spiny Ceratarges Trilobite Fossil on Matrix from Morocco (299.6 grams) libyan glass pendant the shark grew larger andThis alien looking trilobite, known as Ceratarges ziregensis, has a strikingly otherworldly appearance. It's difficult to believe that this creature once roamed the ancient seas. Found in the Middle Devonian limestone of Morocco, its impressive size and numerous spines may have been used for defense against newly evolved fish with powerful jaws. Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level

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