<em>Habelia optata</em> on Tree of Life (IMAGE)
Caption
Simplified phylogeny (tree of life) showing the relationship of Habelia with other groups of arthropods. A new study by paleontologists at the University of Toronto and the Royal Ontario Museum shows that it is an early relative of chelicerates -- a group including spiders, scorpions, horseshoe crabs and mites.
Credit
Cedric Aria
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