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@dmcediacaran.bsky.socialOct 9, 2026, 11:44 AM

This #FossilFriday is brought to you by the #Ediacaran animals of #Newfoundland. The oldest staurozoan cnidarian #Mamsetia manunis, its younger better preserved cousin #Haootia quadriformis and the 551 Ma stem #ctenophore #Edrathina obditchia alongside the candidate poriferans Thectardis & Lydonia.

@dmcediacaran.bsky.socialSep 25, 2026, 11:08 AM

Happy #FossilFriday! The Ediacaran of #Newfoundland is famous for its animal fossils. The most iconic are the muscular #Staurozoa #Haootia and #Mamsetia and I think our new 551Ma #Edrathina is probably comparably important , being the oldest relative of comb-jellies, another early animal group.

retrodeformed holotype of Edrathina see strain ellipse branches arise from margin of a calyx which is triangular in shape interpreted as being a relative of the Ctenophores, the similarly shaped stem-ctenophores like Siphosauctum and Dinomischus Holotype of Haootia quadriformis linesr features are interpreted as muscle fibres. It has been interpreted as a crown group Cnidarian comparable to the modern Staurozoa note the tetra-radial form characteristic of that group