Equip your Doedicurus with a saddle, pick it up with an Argentavis and fly near rocks as it automatically harvests the stone as you fly. Level up the melee damage to harvest more stone with each swing. Level up your Argentavis’ weight capacity be an insane stone harvest team.
Paired with megatherium makes CP a breeze max out your dodic with stone. go to your favorite chitin spot with the megatherium (I prefer underworld cave on center) and sit on the Chems for hours. Up if this helped you