There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
According to Wikipedia, Panthera tigris trinilensis has existed from 1.2 mya to 50 kya, this means they have survived over 1 million years.
That was a very long period, and I don't think the size of this subspecies could remain constant in a such long interval.
I think the previous smaller specimens and this giant specimen were likely not belonging to the same period.
BTW, I think the lower canine alone of this giant specimen could weigh at least 150 grams, and its upper canine could weigh over 200 grams, that's quite consistent with the giant canine teeth of other tigers. When the canine teeth are super heavy, then it is expected to belong to a super heavy skull.