Largest extinct carnivorous mammals, video

This October 2018 video says about itself:

This is a video on size comparison of the largest mammal predators. In this video we shall focus on the largest extinct mammal carnivores. In this video we have extinct mammals such as Andrewsarchus, Arctotherium, Sarkastodon, Smilodon, the American lion, Hyaenodon.

These largest mammal carnivores include the largest felids, largest canids, largest bears, largest hyenas.