In 1849, part of a fossilized arm bone belonging to an extinct giant turtle was found in a New Jersey streambed. It belonged to an Atlantochelys mortoni, who lived during the upper Cretaceous period, about 75 million years ago. From tip to tail it would have been ten feet (3 m) long! That’s larger than any living turtle species.
And in 2012, the other half of the arm bone was found by an amateur paleontologist in New Jersey. Which is especially amazing since the 1849 specimen was the first example of the genus and the species, and the older bone was also without a match of any kind.