This site provides a complete, illustrated guide to plesiosaurs accompanied by numerous links to detailed information about the specific specimens and concepts discussed. An array of photographs, illustrations and artistic renditions are easily enlarged, viewed and downloaded. The site covers a range of topics including marine reptiles, plesiosaurs, elasmosaur, paleontology, the Cretaceous Period, Cretaceous fossils, and the Western Interior Seaway. Many relevant references are also included in the narratives that describe each image as well as in a separate bibliography.