By Derek Olson
Is this actually describing an extinct race of ancient hybrids that once existed in Florida?
The Evening Star / Washington, D.C. / April 1st, 1930
Sources
https://chroniclingamerica.loc.gov/lccn/sn83045462/1930-04-01/ed-1/seq-11/
1930 Report: Giant Skull & “Bones of Extinct Floridans Dug Up”
megalithicmarvels.com 
And in typical colonizer fashion, the remains were disturbed for “scientific curiosity”.