paleoillustration:

Thylacosmilus atrox by Viergacht

“Though Thylacosmilus is one of several predatory mammal genera typically called “sabre-toothed cats”, it was not a felid but a sparassodont, a group closely related to marsupials, and only superficially resembled other sabre-toothed mammals due to convergent evolution.” (via: Wikipedia)

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