Ridiculously useful tames. They are small enough to fit in most caves, powerful enough to take on most dinos, can climb to safety and ambush others, scout with ease, kill whatever the hell they want (minus high-level gigas and titanosaurs) and all the while sprinting around at breakneck speed without losing much stamina.
901030261/10 would tame again
Thylacoleo are capable of pinning down flyers in mid-flight (anything but the Quetz and Wyvern, I believe), other Thylacoleo, and even Therizinos. You can also jump from object to object by holding down the jump button while pouncing from a tree or cliff (have to hit it at the right angle, however). Upvote to inform others!