''Bergaueria'' is an

Ediacaran The Ediacaran Period ( ) is a geological period that spans 96 million years from the end of the Cryogenian Period 635 million years ago (Mya), to the beginning of the Cambrian Period 538.8 Mya. It marks the end of the Proterozoic Eon, and th ...

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Silurian The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozo ...

trace fossil believed to represent the dwelling trace of Cnidarians (Actinia – sea anemones). It likely caused mixing and fluid exchange into the sediment (bioirrigation). Similar traces (''Cheiichnus'') can be made by rotational movement of arthropods.

References

{{Paleo-stub Ediacaran life Trace fossils Silurian life