Cyclomedusa davidi SPRIGG, 1947
Class: Incertae sedis
Order: Incertae sedis
Family: Incertae sedis
Species: C. davidi
Author Citation SPRIGG, 1947
Geological Time Scale
Acquired by: Purchase/Trade
As with so many fossils from the Ediacaran, it is not certain to which phylum they belong.
According to Fossilworks, Cyclomedusa belongs to Cnidaria.
From Wikipedia: "Cyclomedusa was originally thought to be a jellyfish but some specimens seem to be distorted to accommodate adjacent specimens on the substrate, apparently indicating a benthic (bottom-dwelling) creature. The markings do not match the musculature pattern of modern jellyfish. The fossils have been conjectured to represent a holdfast for some stalked form — possibly an octacorallian, or something else entirely."