Trilobites - Trilobites - Trilobite - Acadoparadoxides positive/negative

ACADOPARADOXIDES Extinct class Age Cambrian 450 million years old From Alnif S.E. Morrocco, this one is super cool, it's trapped in the host stone, with the top still intact.

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Tri-lobe-ite alludes to the three-part longitudinal division of their exoskeleton. First appeared 570 million years ago and became extinct about 240 million years ago. These invertebrates were primarily bottom dwellers. Fossilized remains of trilobites have been found on every continent.