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08-16-2015, 08:40 AM( This post was last modified: 08-16-2015, 08:56 AM by GrizzlyClaws )
Well, I haven't seen any of Tscherski's fossil materials, so I cannot draw any conclusion based on his work for now.
But the new mandible is about 20kya, so it should be prior to the Caspian expansion in the Manchuria, and the mandible looks extremely close to that of the official Wanhsien tiger.
So that pretty much gives us an initial impression about the existence of the paleo Amur tiger.
Before the human interference, or even before the Toba eruption, there was no natural barrier between the Manchuria and China proper, and I see no reason why tiger shouldn't set its footprint on Manchuria.
BTW, the Cave lion was a steppe animal like the modern lion, and I don't think they could live in large number in the Manchurian Taiga forest, so they probably preferred to stay on the northern Siberian steppe.
PS, most Siberian Cave lion fossils were discovered in the northern part of Siberia, not Manchuria which is located in the Southeastern part of Siberia.