Photos: Ancient Sea Monster Was One of Largest Arthropods
When you buy through links on our site , we may earn an affiliate military commission . Here ’s how it works . A remarkably well - preserved fogy of a 480 - million - year - previous sea goliath is help researchers understand the development of arthropods . The creature , an anomalocaridid , has not one but two curing of ramification on each of its body segments , showing that it ’s an ancestor of modern - day arthropods , which let in arachnid , worm and crustacean ....