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anomalocaris

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anomalocaris

Prehistoric marine predator resembling a crustacean but with a softer exoskeleton. Up to 2 m in length, it was the largest animal on Earth when it thrived around 525 million years ago. See prehistoric life.



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But, it differs from Anomalocaris by the possession of a huge three-part carapace that projects out from the front of the animal's head.
Hurdia and Anomalocaris are both early offshoots of the evolutionary lineage that led to arthropods, a large modern group that contains spiders, crustaceans, insects, millipedes and centipedes.
Anomalocaris looks so bizarre that for more than 70 years fossil parts from the Burgess Shale in British Columbia were classified as four separate animals before being brought together as one animal in the mid-1980s.
 
 
 
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