10-07-2018, 09:22 AM
I've often considered making a botanical zoeum - or at least a specialist garden, only using plants that evolved before the Jurassic period. So, ginkos, seedferns, monkey puzzles, certain other conifers, agave, but no grasses. A Cretaceous palaeogarden would include some angiosperms such as magnolias and wingnuts, while a Carboniferous garden would require giant clubmosses and horsetails that do not exist in the modern world, but presumably OA tech could recreate them.