Right tho! I mean, I'd say the closest ting we've got to a somewhat prehistoric cat is the Liger. And that fucker is BIG, if not potentially bigger than both the theoretical sabertooth lion AND the sabertooth tiger.
Someone actually made a Question about Prehistoric Animals... What a time to be alive! Lmao.
I'd probably go with a Quetzalcoatlus or a Pteranodon since I have a thing for flying. Similarly if you asked for Modern Day Animals. Then again, I'm also thinking either a Liopleurodon or a Mosasaurus for the Seas. Those really knew how to dominate the place during their respective times. Lastly, a dynamic Predator to cover land. Strong and firm but also flexible and speedy enough. Many would think of a T-Rex but those arms of theirs could really make life harder XD An Allosaurus sounds more ideal to me. Maybe a Spinosaurus or Baryonyx as well though the matter of their actual forms tends to vary. So there you have it.
And if I have to choose a Prehistoric Animal coming after the Age of Dinosaurs in the Cenozoic Era, yeah, a Saber-toothed Tiger or a Mammoth sound good !!!!