American Lion (Panthera atrox)

[GuateGojira]

(11-02-2018, 04:28 AM)Wolverine Wrote: Yes, most probably Panthera atrox has never exceeded 400 kg. But its possible than the largest specimens of Panthera fossilis could touch or even exceed a little bit 400 kg margin. 
@GuateGojira you are good in weight calculations, do you have dimentions and data of the skeletons of the gigantic specimens of Panthera fossilis found not long ago in Northern Russia (Ural), what are your weight estimations?

In a previous post, don't remember where, I estimated that the only cat that probably weighed about 400 kg, or maybe more, was Panthera fossilis, based in the huge skulls found of this species. The other one that probably reached similar body masses were the largest specimens of Panthera spelaea from the transition phase.

Now, in a recent post in the cave "lion" topic (https://wildfact.com/forum/topic-the-cav...is?page=15 - post 213), using the isometrical equation of Sorkin (2008) and Christiansen & Harris (2009), but only with the method suggested by Sorkin (2008; using only the largest/average specimens from certain species) with the largest specimen reported from Panthera fossilis which is 484.7 mm Chateau skull (Marciszak et al. 2014), which is the largest skull from any Felidae on record, I obtained a body mass of 418.4 kg, with posible minimum and maximums of 394.3 kg and 441.5 kg, depending of what specimens we use. I think that a body mass of c.420 kg is a good estimation for the maximum weight for Panthera fossilis, which will make him the largest cat in history. Reply