[[Check out several articles on Edicara Period.]]
unless they have found something since 2018, then it still stands that there’s nothing there?
“The Fossils Still Say No
Making this mystery even more evolution-defying is the fact that the rock layers below the Cambrian are devoid of invertebrates. While this was known in Darwin’s day, the mystery has never been resolved, and a 2018 study reported that a thorough re-analysis of the Precambrian Ediacaran sediments showed they are completely empty of evolutionary ancestors. The researchers stated, “The lack of euarthropod body fossils in the Ediacaran biota is mirrored in all other preservational regimes in the Precambrian, including BSTs [Burgess Shale type deposits], phosphatised microfossils, and chert deposits.”3 They also found that the ancestors to the Cambrian creatures were “strikingly absent” in the Ediacaran period.”
https://www.icr.org/article/12519
By nothing i mean invertebrates
No, they are not.