Dododex
ARK: Survival Evolved & Ascended Companion
Tips & Strategies

To get good brontosaurus saddles, go to the red drops on Ragnarok in the desert, you have a chance of getting Journeyman, Mastercraft, etc. platform saddles which you can then put chemistry benches on and you can make mass amounts of narcotics and stimulants (if you even make those).
More Brontosaurus Utility Tips
Just found out something really useful about Brontos! You can use them to transport goods a long way, but sometimes you have more than the bronto can carry, so, if you pack your resources on something like a high level parasaur or iguanodon, and put it on the platform saddle, it only takes the Dinos drag weight, not resource weight, allowing you to carry tons of materials at half the weight!
These things can be aggroed on by:
Allosauruses,
Spinos,
Rexes,
Alpha Rexes,
Yutyrannuses,
Carcharos,
Gigas,
Rhynios,
And finally megatheriums that somehow got the insect buff
If it is able to aggro onto a bronto without it aggroing the animal first that means it is aggressive to and will attack any and all other tames.
This also applies to the paracer as in terms of prey the paracer can be aggroed on by the same creatures listed above.