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The Arthropod Story Table of Contents   


Opabinia, another small Cambrian critter, grew to eight centimeters (about three inches). This creature likely caught prey with the grasping claws of its long, tube-like proboscis and then stuffed the food into its mouth — much as an elephant uses its trunk. Opabinia may have even used its proboscis to pull worms out of their burrows.


Sanctacaris: An arthropod

Is Opabinia an arthropod?

Opabinia fossil photo by Chip Clark, Museum of Natural History, Smithsonian Institution

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