The assemblage was discovered during phosphate mining, which began in the late 1940s.
[1] Haile sites are found in the Alachua Formation.
Two sites within the Ocala Limestone yielded Upper Eocene Valvatida (sea stars) and mollusks.
University of Florida and Florida Museum of Natural History paleontologists numbered the Haile fossil sites with Arabic and Roman numbers and letters in order to define locations more distinctly.
Late Pleistocene Haile sites: 7C, 15A (No longer exists), 16A, and 21A.