As a dung beetle this is my favorite type of poop and i love it.

Just get like a rex or something, (on mobile spinos drop 2 of these at a time so i use them) and go hunting or do anything that depletes stamina, you'll get alot of these.

Eww big poo poo...

If you want to get a lot of big feces then you have to go to the herbivore Island, there is a lot of big animals that live there.