Simbakubwa kutokaafrika, the great lion from Africa

Simbakubwa or Simbakubwa kutokaafrika (great lion from Africa) is a fossile of an extinct species of a mammal of the family Hyainailouridae. It lived during miocene and was found in Kenya, Africa. Fossile was dated to 23 millions years. Reaching up to 1,500 kg, it was seven times bigger than an an adult lion. Source: Wikipedia