The Earliest Known Vertebrates Had Four Eyes—and They Worked a Lot Like Ours Do, New Research Suggests Two of those eyes may have evolved into a part of the brain called the pineal gland

Good ol' four eyes. Cambrian old. #Myllokunmingia
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The first vertebrate named #Myllokunmingia ，named by Chinese paleontologist #ShuDegan, And #TRex named by #HenryFairfieldOsborn， a great American paleontologist #galaxy #Dino

The first vertebrate named #Myllokunmingia ，named by Chinese paleontologist #ShuDegan, And #TRex named by #HenryFairfieldOsborn， a great American paleontologist