A nice piece of alligator jaw with some interesting detail.  Alligator fossils from Florida dating to the Pleistocene epoch show that modern- day American Alligators have undergone very little change since the last Ice Age. 
 
Location: Florida, USA.
 
Age: Pleistocene epoch 2.5million - 11, 700 years ago.
 
Dimensions: 3.28 x  1.14 inches