The shrimp-sized, strong-armed creature dating back 520 million years is filling in some evolutionary gaps.
. The scan revealed that more soft parts of the animals’ anatomy were also buried in the rock. While there are plenty of species of arthropods preserved in the fossil record, most fossils only preserve the hard skeletons. “The preservation of the fossil animal is amazing,” study co-author and University of Leicester PhD student Robert O’Flynn. “After CT-scanning we can digitally turn it around and literally stare into the face of something that was alive over 500 million years ago.
This new specimen was nearly complete, which enabled the team to identify the six segments that made up its body: the head, a second segment with its grasping limbs, and the other four segments which have a pair of jointed limbs. “Robert and I were examining the micro-CT data as part of his doctoral thesis in the hope of refining and correcting previous interpretation of head structures in this genus,
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