>>4998088This take it total nonsense. Long outdated and never had any evidence going for it. Petalonames survived into the cambrian just fine largely unmodified from their ancestral form. Not to mention towards the end of the ediacaran you see them adapting to the lack of microbial mats just fine, which this idea says they can't.
Read this https://www.manospondylus.com/2022/02/the-life-of-charnia-masoni-and-friends.html