I did say I would not Hijack your thread by talking about Polystrate trees, but will have pictures from the net of them on my Laptop to show you breifly when I get there.
Briefly, a Polystrate tree is a fossil/petrified tree--Usually without its root system as it has been broken off and deposited vertically by a large flood. It is verticle running through many rock layers proving all these Rock Layers were all laid down in just one very big flood event, rather than being slowly covered over by sediments during a long period of time.
"Poly" is a word meaning "many"--polymer--many carbon atoms in the chain of atoms making the substance, etc.
"Strate" as in "Polystrate" after "Strata" or rock layers.
I do know where some Far North Coast Jurassic Polystrate tree fossils are, and when weather is warmer heading there for a swim and will photograph them at that time.
I also know where some are at Gympie, and will head up there soon to photograph them.
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