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Cyclomedusa davidi SPRIGG, 1947
Images: 
By oilshale
Taxonomy
Jellyfish?
Kingdom: Animalia
Phylum: Cnidaria?
Class: Incertae sedis
Order: Incertae sedis
Family: Incertae sedis
Genus: Cyclomedusa
Species: Cyclomedusa davidi
Author Citation SPRIGG, 1947
Geological Time Scale
Eon: Proterozoic
Era: Neoproterozoic
Period: Ediacaran
Sub Period: None
Epoch: Late
Stratigraphy
Mohyliv-Podilskyi Group
Mohyliv Formation
Yampil Beds
Provenance
Acquired by: Purchase/Trade
Dimensions
Diameter: 9 cm
Location
Bernashivka
Mohyliv-Podilskyi Raion
Vinnytsia Oblast
Ukraine
Comments
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."
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