Hmm, well, the Garden of Eden was in Missouri, Jackson County I believe. But from that quote, it seems to me that dinosaurs were on the earth before the garden was, so maybe while it was being set correctly the right climate and such for man kind to come, however, we haven't been taught about it because, honestly, it has nothing to do with out eternal growth. I would like to know though, can't wait till we get to Celestial Kingdom to learn all those things =)