Very easy and recommended knock out tames!

1. Find a carnotaurus attacking a parasaurolaphus

2. Shoot ten or more arrows at it as it hunts

3.feed it meat(for low level Carnos, for high levels kibble is recommended).

4. Wait and feed narcotics/bio toxin to keep him/her down

5. You have a strong carnivore! Get a tannery and make a saddle