I still think unicorns are real haha
<span>It included ferns and fernlike trees; giant horsetails, called calamites; club mosses, or lycopods, such as Lepidodendron and Sigillaria; seed ferns; and cordaites, or primitive conifers....
So I would say that a wide variety of plants evolved.
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You can eat starch, but you can't digest cellulose