The Strange Case of the Buzzsaw Jaws
There are many fossils that challenge our ability to form even the most basic idea of how a living thing looked, or lived, or functioned. One of the longestrunning of these mysteries involved a 270millionyearold sea creature called Helicoprion that once swam the seas around the supercontinent of Pangea. Produced in collaboration with PBS Digital Studios: Want to follow Eons elsewhere on the internet Facebook Twitter t
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