History and Discovery
Scientific interest in the spring began in 1850, when Sarah Smith reported seeing the bones of an ancient mastodon on the bottom. Since that time, scientists have identified the remains of at least nine other extinct mammals that date to the last glacial period, deposited as far as 1,200 feet (360 m) back into a cave. Today, at a depth of about 190 feet (58 m), the fossilized remains of mastodons are in full view along with other fossils.
The Florida Geological Survey (FGS) commissioned their first study in August and September 1930 with geologist Dr. Herman Gunter. Dr. Gunter's work focused on the recovery of fossils found in the spring basin. He utilized hard hat diving techniques, a dredge, and "long-handled grappling tongs". A mastodon recovered from their work is now on display at the Museum of Florida History.
The FGS conducted additional studies at Wakulla Springs in 1955, 1956, and 1962 under the direction of vertebrate paleontologist, Stanley J. Olsen. Olsen's team of six divers from Florida State University discovered animal fossils deeper within the spring complex where they also found archaeological evidence of early humans, including bone and stone tools. Ultimately, the presumed behavioral association among the recovered cultural and fossil materials could not be demonstrated unequivocally because of the difficulty of establishing and maintaining provenience control in a submerged spring-vent context.
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