Plesiosaur Directory
- Introduction to the group including taxonomy, reconstructions, and original artwork.
- http://www.plesiosauria.com/

Marine Reptiles of South Dakota
- Overview of Mesozoic marine reptiles, illustrations, descriptions of specific types, and a glossary.
- http://www.northern.edu/natsource/earth/Marine1.htm

Fossil Preparation Lab SUNY Brockport
- Watch the preparation of a fossil icthyosaur found in Wyoming in 1998. Click on "Current Projects"
- http://vortex.weather.brockport.edu/~jmassare/riley/prepcontents.html

Marine Reptiles
- Links to other marine reptile sites by Richard Cowen.
- http://biology.fullerton.edu/biol404/hol/hol_ch16.html

Marine reptiles: Palaeontological Museum, University of Oslo, Norway
- A collection of photographs of marine reptile specimens at various European museums
- http://www.toyen.uio.no/palmus/galleri/montre/english/marine_reptiles_liste_e.htm

Mosasaur and Plesiosaur Pronunciation Guide
- Having trouble pronouncing those long names? Want to know what they mean or who named them? Ben Creisler has compiled an excellent listing of the names and their origins.
- http://www.dinosauria.com/dml/dmlf.htm

Mosasaurs in Arkansas
- During the late Cretaceous, half of Arkansas was submerged under a shallow ocean called the Western Interior Seaway. Mosasaurs and other strange creatures lived in this ocean. When they died, sometimes their bones were preserved as fossils.
- http://www.ualr.edu/~ersc/Mosasaur/Mosasaurus.html

The Ichthyosaur Page
- While dinosaurs ruled the land, the ichthyosaurs shared the seas of the world with the other great groups of large marine reptiles, the plesiosaurs and mosasaurs.
- http://www.ucmp.berkeley.edu/people/motani/ichthyo/index.html

Oceans of Kansas Paleontology
- Late Cretaceous marine fossils from the Western Interior Seaway. More than 50 pages of information on mosasaurs, plesiosaurs and other fossils found in Kansas and the Midwest.
- http://www.oceansofkansas.com/

The Plesiosaur Site
- This site is intended to give serious and detailed information on the Order Plesiosauria, to provide a forum for discussion and for the presentation of ideas no matter how wild and fanciful on the palaeontology, taxonomy, biomechanics, biology and ecologi
- http://www.plesiosaur.com/

New Zealand's Ancient Marine Reptiles
- Information about prehistoric marine reptiles of New Zealand, where, whom, when and what was found. Paleogeographic information, where in New Zealand to see fossil material displayed, suggested reading material and links to other related websites.
- http://www.oceansofkansas.com/nz-aus.html

M.J. Everhart's Marine Reptile References.
- An alphabetical listing by author of published papers about ichthyosaurs, marine turtles, mosasaurs and plesiosaurs.
- http://www.oceansofkansas.com/rep-refs.html

Reptiles of the Ancient Seas
- From the Museum of UnNatural History
- http://unmuseum.mus.pa.us/searepti.htm