These are great for doing fish meat runs. Most water mounts such as Basils, eat fish meat as fast as they can gather it. Others such as spinos simple are a pain to use in underwater combat due to turn radios and hit box. Baryonyx gathers fas much fish meat as a spino, but better due to its stun ability and unlimited oxygen and maneuverability. Just swim right up to a megladon, stun it, chomp. Rinse and reappear. Best at fish meat gathering in my opinion. Never underestimate their stun ability!!

Baryonyx are quick like Allosaurus and do just as much damage (but don't get a pack bonus). They don't use oxygen for swimming and can sprint in the water. Right click in the water does an AoE stun that lasts about 10 sec. Their 'C' is a... Taunt? They also jump and you can fire a weapon from their back.

It’s just perfect, because except for the snow cave, and maybe some of the underwater caves(which i recommend you use a basilo for which is an easy tame with this puppy) you can do every single cave with a high level Baryonyx.
They are just so OP.

Baryonyx is king of the seas! Tame with Pachyrhinosaurus kibble and use them to help you tame basilosaurus as they can stun all the Manta that follow!