Here's a mobile taming trap that'll work on just about anything from a Saber to an Allo:

1xRaft, 1xStone Dino Gateway, 1xStone Dino Gate, 2xStone Sloped Roof, 4xStone Foundation, 4xStone Ceiling, 18xStone Doorframe, 1xPteranodon (Optional).

Assemble 2x2 foundation on raft, add ramps and gateway to the front, place doorways to the height of the gateway on remaining sides, add ceilings at the top.

Lure dino through the gateway, fly/jump through the doorframes, and close the door behind the dino.

Modify as you see fit, additional structures maybe damaged or destroyed during tame. Monitor your health stats while luring and watch out for Leedsicthys during transit.