[Robert A Cook PE]

Hmmmn. Maybe.

I’ve got the original “fossilized” growths of the iron-producing “plants” on my shelf, also at 3.5 billion years old. Seems that a structured, stem (or backbone ??) and body would be hard to see evolving at the same time the fundamental atmosphere was changing from “deadly” to “oxygenated”. Or vice versa: From “life sustaining” to “deadly and poisoned with oxygen”

Not gonna claim that a miracle did not occur, merely that this date range seems unlikely.

[SunkenCiv]

Thanks Robert A Cook PE.