Furthermore, the mutual consistency of these two independent dendrochronological sequences has been confirmed by comparing their radiocarbon and dendrochronological ages.
[…] Fully anchored chronologies which extend back more than 10,000 years exist for river oak trees from South Germany (from the Main and Rhine rivers).
Another fully anchored chronology which extends back 8500 years exists for the bristlecone pine in the Southwest US (White Mountains of California).
The Bristlecone pine is ideal for this, because they can live to be 5,000 years old, and are among the oldest living organisms. We aren’t told where those degrees were awarded, or when.
Lets assume that each tree lived for 1,000 years, one after the other; but before the first tree died the second tree had begun its life. Wikipedia has an entry for John Woodmorappe — can there be more than one? (Allowance for unlisted names in the biblical chronologies pushes back these dates, but not much).
It is called the “divergence problem.” Several explanations have been offered to explain the divergence problem, and there is a fair amount of literature on it.