Some crazy giant fish once swam the inland seas of what is now Middle America.
Although they were not closely related, a Xiphactinus would have looked much like a modern Tarpon. The fish probably attained lengths of 18 to 20 feet, and some 'giant vertebrae' from marine deposits in Arkansas indicate that some individuals that were even larger..
The famous fish within a fish fossil
Pachyrhizodus caninus was a medium sized predator, up to 6 ft or more in length.
