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.
Well, in fact, there are a few fossils of Caspian tigers, but all of them came from the Late Pleistocene-Early Holocene. Check the tables of Kitchener & Yamaguchi (2010), in the region of Russia and the Caucasus:
*This image is copyright of its original author
*This image is copyright of its original author
Phylogeographic analysis with extant tiger subspecies suggests that less than 10,000 years ago the Caspian/Amur tiger ancestor colonized Central Asia via the Gansu Corridor (Silk Road) from eastern China then subsequently traversed Siberia eastward to establish the Amur tiger in the Russian Far East (Driscoll et al., 2009). Fossil evidence support the genetic analysis.