This is a Guide on how to get a raptor

1: you get prepared with bolas and tranquilizer arrows. (I suggest about 50 arrows and five bolas)

2: you go looking for raptors with a Mount. (I suggest a para or a iguanodon)

3: bola all raptors in pack and and at least knock out the alpha (you can kill the rest of the pack if you want)

4: Kill some creatures in the area for meat.

and you have a raptor I hope this was helpful:)