The secret to an Oesia life: Prehistoric worm built tube-like ‘houses’ on sea floor

The fossilised remnants of tube-like ‘dwellings’ which housed a primitive type of prehistoric sea worm on the ocean floor have been identified in a new study. According to researchers, the long, perforated tubes may have looked like narrow chimneys reaching up from the sea bed, and were made by a creature called Oesia, which lived a solitary existence inside them about 500 million years ago.
Paleontology News — ScienceDaily

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