Raúl
23.12.2013
This dwarfism effect is not unknown in mammals, even if it was caused by other reasons apart from island dwarfism. On the prehistoric side, the most dramatic change was the dwarf mammoths that were no larger than an average cow; on the modern size, some populations of brown bears like Flathead and Eastern Brooks (inland) average no more than 180 kg, which is about 50% less than an average Kodiak or Costal Alaska bear.
Raúl
23.12.2013
Hi Лана. Interestingly, this tiger was not extinct per se, but it evolved into the modern Java-Bali tiger (Panthera tigris sondaica-balica). Mazák & Groves (2006) stated that the only complete skull of the Ngandong tiger (c.390 mm) had already all the characteristics of the modern Javanese tiger, like a narrow occiput and a relative large lower M1. In this case, it seems that the Ngandong tiger was the direct ancestor of the modern Sonda tigers and the dramatic change is size (from 370 kg to 140 kg) was part of the island dwarfism.
rom
23.12.2013
Все же написано:) 195000 лет назад.
Лана
23.12.2013
А когда этот тигр вымер?
Raúl
19.12.2013
I think that the best is to trust in Dr Von Koenigswald, he was an expert and knew his business and I heavily doubt that been such a professional, he will missed this “typo” and done nothing. I am 100% that his measurements are correct and this is the official data, no less. By the way, the resulting size using only the book images was 430 mm, not 420 mm, and if we use this size, the robustness results to be closer to the Smilodon, which is simple unreliable. In this case, 430 mm or lower is incorrect; 480 mm is the correct one and its index match perfectly with modern tigers (5.45 against 5.03-5.47 for modern tigers).