Use on extinction to gather element dust and crystal from lamp posts and tables. If you have a crab (argy or quetz also work) you can quickly solo run ele dust (I got about 15k in an hour on 1x). You just have to put the doedicurus on wander and carry him near a lamp with your other tame. Make sure you empty him every 2-3 swings or he will overencumber on crystal and won't swing automatically any more. Of course he also cannot be on follow or he won't auto swing either.
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.
On Ark Mobile, at least, Argies can pick tamed ones up and they’ll auto mine stone when you fly near rocks, making it a great combo for when you have both of them and don’t want to waste durability of your hatchet.