The oldest fossilized shrimp in the world was recently discovered -- not in a coastal area, but in landlocked Oklahoma.
Geologists have been studying the ancient morsel, which was preserved in stone is as much as 360 million years old and was found in Oklahoma in remarkably good condition -- even the muscles of the fossil are preserved.
Rodney Feldmann, a professor at Kent State University in Ohio, explained that the sea critter was in Oklahoma because at the time, Oklahoma was the sea.
"It was preserved at a time when Oklahoma, and much of the rest of North America, was beneath sea level," Feldmann told FoxNews.com.
In fact, Oklahoma was so far beneath sea level as to be called "undersea." The U.S. geography was much different millions of years ago: A continent called Laramidia existed when a shallow sea flooded the central region of North America, isolating the eastern and western portions of the country for millions of years during the Late Cretaceous period.
