National Historic Landmark - Hadrosaurus Foulkii Leidy Site

Discovered by William Parker Foulke in October 1858, Hadrosaurus foulkii Leidy was the first relatively complete dinosaur skeleton found in North America, and, in fact, anywhere in the world.

Realizing the spectacular nature of his find, Foulke called upon Dr. Joseph Leidy and Mr. Isaac Lea of the Academy of Natural Sciences of Philadelphia for assistance in evaluating the fossils.

Presentation of this discovery to the scientific world revolutionized the understanding of dinosaurs.

Credits and Sources:

Information provided by the National Park Service.