An ancient sinkhole in Tennessee preserved fossils from a 5-million-year-old forest, including turtles, tapirs, mastodons, and a red panda relative. This rare site reveals a warm, subtropical ecosystem. It hints at intercontinental species migration between Eurasia and North America, offering new insights into a poorly documented period of North American prehistory.
- ancient lake sediment fossils
- ancient red panda fossil
- Cenozoic fossil record North America
- false thumb red panda ancestor
- fossil discoveries in karst basins
- fossilized subtropical fauna
- Gray fossil site Tennessee
- Gray Tennessee paleontology
- intercontinental mammal migration
- karst landscape fossil preservation
- Miocene-Pliocene migration
- North America Eurasia species exchange
- North American paleobiogeography
- pbs eons
- prehistoric ecosystem preservation
- prehistoric red panda
- Pristinailurus bristoli
- red panda ancestor in America
- red panda evolution
- subtropical forest ecosystem fossil
- Tennessee sinkhole fossil site
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