Throw a few females and a male into a small pen. Enable mating on all of them. Hatch as many females (and a couple more males) as you’d like. Bring a dimetrodon into the pen to help with incubating the eggs. Set him on aggressive, and he will automatically kill the babies and harvest the organic polymer (which can be used as a substitute for regular polymer, saving obsidian and cementing paste).

It seems like they also lay normal eggs pretty often, so I like to keep an oviraptor on wander (weighed down with rocks) nearby to boost unfertilized egg laying for basic kibble.