Gymnosperms + Ferns dominated
the globe in MESOZOIC [dinosaurs]
at end-Cretaceous [~65m.y.a.] Angiosperms
began rapid rise; now dominate other
groups in all but boreal zone
plants began ~450m.y.a.;
by 350m.y.a. world covered by forests
of lycopods and allies [-> coal deposits]
begin interactions with rising insects
birds and mammals
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