[balrog666]

I've read that the tree-ring records have been extended back to 10k years now.

Pinging the expert.

[Coyoteman]

I've read that the tree-ring records have been extended back to 10k years now.

Pinging the expert.

The tree-ring records I am familiar with are from southern California (the White Mountains) and Arizona. Didn't even know where Anatolia was until I looked it up.

The latest I have heard on the calibration:

Dendrochronologically dated tree-ring samples cover the period from 0-12.4 ka cal BP. Beyond the end of the tree-rings, data from marine records (corals and foraminifera) are converted to the atmospheric equivalent with a site-specific marine reservoir correction to provide terrestrial calibration from 12.4-26.0 ka cal BP. Source

Hope this helps.