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|Planolites sp. fossil at the Geological Museum in Copenhagen|
|Trace fossil classification|
Planolites is an ichnogenus found throughout the Phanerozoic that is made during the feeding process of worm-like animals. The traces are generally small, 1–5 mm (0.039–0.197 in), unlined, and rarely branched, with fill that differs from the host rock.
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