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12-14-2014, 11:17 AM( This post was last modified: 12-14-2014, 11:20 AM by GuateGojira )
(12-13-2014, 10:12 PM)'tigerluver' Wrote: Correction to the time in bold, a new study shows the Ngandong tiger lived around 345 ka (143 ka-546 ka). I wonder if that changes the evolutinary timeline. Have the Wahnsien specimens or faunal levels been actually dated or simple guesstimations?
That is true, the new study suggest a date of that range. About the evolutionary line, I think that nothing should change. I mean, some posts ago I wondered if the Wanhsien tiger actually developed different forms in the looooong time that they lived in mainland. With the new data, we can guess that the third wave of tigers to the Sunda happened earlier than we think before, but the event is the same. What we most re-evaluate is the time that the two populations were together and it seems that it was much longer than our previous statements. With this, I can guess that the differences between mainland and Sunda tigers were smaller in a genetic level, suggesting a closer "subspecies" differentiation (75% rule of Kitchener), rater than "species".
Finally, about the Wanhsien tiger, I have not found a complete study of the timeline, only the statements of Brongersman and Hooijer, so I guess that the time statements are just guesstimates, like most of the old dating studies.