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microrobert
03-12-2015, 05:08 AM
Ancient Sea Monster Was One of Largest Arthropods

http://i.livescience.com/images/i/000/074/555/i02/Aegirocassis-benmoulae.jpg

A remarkably well-preserved fossil of a 480-million-year-old sea monster is helping researchers understand the evolution of arthropods. The creature, an anomalocaridid, has not one but two sets of legs on each of its body segments, showing that it's an ancestor of modern-day arthropods, which include arachnids, insects and crustaceans.


http://www.livescience.com/50111-photos-anomalocaridids-morocco-fossil.html