It's like a big microraptor, but instead of knocking you off your mount, it latches to your creature and tears it a new asshole.

You also get them by kidnapping their unborn children and raising them, like wyverns and rockdrakes.

It’s like a raptor and a rock drake had a baby

How to tame.
Step 1. Sneak up behind it.
Step 2. Pluck out a feather.
Step 3. Run and scream
Step 4. Respawn and try again.

ARK: Alright we got giant pigs, bees, sloths, manti, cats, etc. What else do we need?
Devs: GIANT ARCHAEOPTERYX

For that one person, Paracer’s are giant hippos. You’re welcome. Ark has already added giant hippos and we just thought they were deformed giraffes or something