Carry a shotgun. The Redwood isn’t so bad with a pump-action (And yes, you can shoot these guys in the face while they have you “pinned”). You can spot them standing sideways high up in the big redwood trees during daylight. Just don’t panic when they jump on you.
It all started when I played ark for the first time, I had managed to tame a high level tapejara and absolutely love him. I named him Barry and we set off on many adventure exploring the island. On day I was just flying through the redwoods and usual taunting the carnivores below me for not being able to touch me. BAM the thylacolia jumped out the trees and ripped me off Barry. Barry was whistled on nuetral and as he came down to aid me a desperately tried to get him on passive, but I was panicking, my screen shook as I was terrified as this was my first encounter of one. I tried to punch it but I inevitably died. I respawned and immediately got on my pteradon but just as I got on the saw the message in big red letters that Barry had fallen to the thylacoleo.
The redwoods are now basically a no fly zone, I lost a quetz, and a pter to these b******s. They jump out of the tree, rip you off your mount, and then pin you and your mastercraft armor to the ground and murder you.
They will jump on you and murder you even if you're on a fricking wyvern. You are not safe from them no matter what animal you have. Just accept your slow and tender death. I learned it the hard way lmao. Scared the fckng hell out of me
Wanna find one? Simply mind your own business flying through the redwoods and they'll find you! Just make sure you can take some fall damage and that your tame is set to passive so it doesnt kill the thyla. (I know this seems like a joke but this is legit the only way I know how to find them.)