There are no living "prehistoric" trees, although a very few living trees are some 3,500 to 5,000 years old Most "old growth" trees on the U.S. West coast (redwoods) are 500 to 800 years old, while "old growth" trees in the state of Georgia would more likely be 400 year-old live oaks or longleaf pines in coastal areas.
(a very few living trees; are; some 3,500 to 5,000 years old Most "old growth" trees on the U.S. West coast) (old growth" trees in the state of Georgia; would more likely be; 400 year-old live oaks)
a very few living trees old growth" trees in the state of Georgia
are would more likely be
some 3,500 to 5,000 years old Most "old growth" trees on the U.S. West coast
400 year-old live oaks