@JackTheCat and in our back yard! When I was doing my my PhD - forty years ago - my supervisor took me to Rhynie and I picked up a piece of Rhynie chert with a piece of Rhynia - an ancient vascular plant. (I lost it some while ago.)
News that Prototaxites is an entirely different form of life is - well, mind blowing! And kind of incomprehensible.
(I also used to have a small fossil of stigmarian roots - giant horsetails - which I picked up on a mountain in Greenland. But I've lost that too!)