For full Titanoboa taming details, get the taming calculator app.
These values are egg-stracted from Dododex's own tests and user reports. Timing and intervals are rough estimates, as the Titanoboa's eating pattern is unclear. Use the 'Report Data Error' button if any of your eggs differ. The Titanoboa must be tamed with fertilized eggs. Drop an egg near it and it will consume it.
You tame them by droping ferti eggs from your inv on the ground. You need to do so when the snake is not aggroed, so sit on a rex or smthing it wont attack. Be sure to drop them from your inventory, not from dino ones, that will make it bugged, it wont eat. To a lvl 20 Rex egg gives 29% on 2x event, bronto 26.7% and giga and wyvern the same, looks like all the big eggs give approxymately the same amount.. so dont waste the best you have ? If they get aggroed on you just run away and return, taming wont drop. Happy taming!