Researchers Say They have Found the Ancient Dens of Giant Carnivorous Worms – Gizmodo Australia

Twenty million years ago, the shores of northern Taiwan were sandstone sediments at the bottom of the sea, where 6-foot-long worms lurked in their burrows, waiting for unsuspecting prey to pass overheard. Now, a team of geoscientists have chronicled 319 trace fossils of those carnivorous marine worms, whose dens fossilized in the Miocene muck.
In the beginning, we were firmly convinced it was a very fancy shrimp burrow, Ludvig Löwemark, a sedimentologist at National Taiwan University, said in a…

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