One of the most underrated dinos on ARK. Easy tame, just aggro let it get out of the water then bola it. Its the ATV of ark. Very underrated. Its fast on land and water. Having megladon problems? Baryonyx it. Stuns them, even in groups, then collects all that prime fish meat!! One of the first dinos I look for when starting.
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 like a small Allo combined with a Kapro, in my opinion. Useful on both land & in the water. Use its secondary attack while swimming to stun, attack, and harvest. Does NOT stun Cnidarias, though, so do not expect to overpower them.