Delaware Valley Paleontological Society
- Based in Philadelphia. Includes field trip information, other events, and their publication "The Mosasaur."
- http://mywebpages.comcast.net/exogyra/dvps.htm

Devonian Times
- An educational site covering the early evolution of tetrapods by focusing on the Late Devonian Red Hill locality in Pennsylvania. Information on associated fauna (lobe-finned fishes, placoderms, sharks, acanthodians) and flora (lycopsids, pr
- http://www.devoniantimes.org/

The Carnegie Museum of Natural History
- The Carnegie's Centennial Gallery, with its Hall of Dinosaur is a popular attraction for paleotourists.
- http://www.clpgh.org/exhibit/neighborhoods/oakland/oak_cente.html