Question

origin of gymnosperm occurred in the era​

Answer 1

Fossil records indicate "gymnosperms" originated in the Paleozoic Era, during the middle Devonian Periodabout 390 million years ago, and reached their greatest diversity during the MesozoicEra, between 60 to 225 million years ago. ... Most "gymnosperms" are wind-pollinated except for cycads, which are beetle-pollinated.