This is what I've done to tame these

1. Get at least 300 blood packs and drag them into your "0" slot.

2. Make some parachutes. For me they flew up and dropped me so chutes were a must.

3. They are around 7 to 10 second intervals so be patient and stay alert for other threats.

Other than that they're pretty easy tames I would recommend getting a low level first so and farming blood packs with that low level. If you attack other dinos it will give you blood packs if you kill it you will get spoiled meat and raw meat.