Horsetails and similar plants are thought to have constituted a large proportion of the vegetation during which geological time period?

Answer 1

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The carboniferous. Cross reference with calamites.

Source(s): [n] = 10ⁿ

Answer 2

You can find the same horsetail plants in the fourteen states of the Great American Prairie.  Most any ditch near the mouth of a culvert.

Answer 3

The Antediluvian

Answer 4

Mesozoic era, Triassic, Jurassic and Cretaceous periods.

Answer 5

I did look online, and i didn't find anything either, hell I've looked around and asked people if they've found anything from other websites, I've asked people on amino, discord, and other apps, so being a jerk about it isn't helping, I'm not stupid I just have a hard time finding things.