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Opabinia is a creature found in the earliest Cambrian rock beds and possesses characteristics very different from other life forms. It had a segmented trunk and a soft shell. There were five eyes on its head. More interestingly, it had a proboscis on its head, which ended in spines. This was probably used for grasping preys.79Each of the trunk segments had a pair of gills. The hindmost three segments comprised the tail. Thanks to Opabinia, scientists realized that the soft-bodied Burgess Shale fauna was more complex and diverse than they had previously imagined.
