Hot SpringsThe sinkhole is now dated to 160,000 years.

That is six times older than the accepted age, changing what era it documents.

Radiocarbon dating fails past 50,000 years, so US scientists measured light-trapped electrons in buried quartz grains.

Any human-association claim tied to the old date now needs review, researchers say.

How each outlet framed it
Phys.org
challenges radiocarbon dating of apatite (26,000-year estimate) with luminescence method, revealing mammoths 160,000+ years old

Sources: Phys.org