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Contact

About the author
Email: plesiosauria@gmail.com
Follow: @adamstuartsmith

Higher taxa

  • Sauropterygia
  • Eosauropterygia
  • Eusauropterygia
  • Pachypleurosauria
  • Nothosauria
  • Pistosauroidea
  • Pistosauria
  • Plesiosauria
  • Pliosauroidea
  • Plesiosauroidea

Families

  • Aristonectidae
  • Brachauchenidae
  • Cimoliasauridae
  • Cryptoclididae
  • Elasmosauridae
  • Leptocleididae
  • Microcleididae
  • Plesiosauridae
  • Pliosauridae
  • Polycotylidae
  • Rhomaleosauridae

Genera

The genera section is under construction, active pages are indicated by an asterisk

  • A
  • Albertonectes
  • Alexeyisaurus
  • Alzadosaurus
  • Anningasaura
  • Aphrosaurus
  • * 'Apractocleidus'
  • * Archaeonectrus
  • * Aristonectes
  • * Attenborosaurus
  • Augustasaurus
  • Avalonnectes
  • B
  • Bathyspondylus
  • Bishanopliosaurus
  • * Bobosaurus
  • Borealonectes
  • Brachauchenius
  • * Brancasaurus
  • C
  • Callawayasaurus
  • 'Cimoliasaurus'
  • Colymbosaurus
  • * Cryptoclidus
  • D
  • Dolichorhynchops
  • E
  • * Edgarosaurus
  • * Elasmosaurus
  • Eoplesiosaurus
  • Eopolycotylus
  • * Eretmosaurus
  • Eromangasaurus
  • Eurycleidus
  • F
  • Fresnosaurus
  • Futabasaurus
  • G
  • Gallardosaurus
  • Georgiasaurus
  • H
  • Hauffiosaurus
  • Hydralmosaurus
  • Hydrorion
  • Hydrotherosaurus
  • I
  • J
  • K
  • * Kaiwhekea
  • * Kimmerosaurus
  • * Kronosaurus
  • L
  • * Leptocleidus
  • Leurospondylus
  • * Libonectes
  • * Liopleurodon
  • Lusonectes
  • M
  • * Macroplata
  • Manemergus
  • * Maresaurus
  • Marmornectes
  • Mauisaurus
  • Megalneusaurus
  • * Meyerasaurus
  • Microcleidus
  • Morenosaurus
  • * 'Morturneria'
  • Muraenosaurus
  • N
  • Nichollssaura
  • O
  • * Occitanosaurus
  • 'Ogmodirus'
  • Opallionectes
  • P
  • * Pachycostasaurus
  • Pahasapasaurus
  • Palmulasaurus
  • Pantosaurus
  • * Peloneustes
  • Pistosaurus
  • Plesiopleurodon
  • Plesiopterys
  • * Plesiosaurus
  • Pliosaurus
  • Polycotylus
  • Polyptychodon
  • Q
  • R
  • * Rhomaleosaurus
  • S
  • Seeleyosaurus
  • Scanisaurus
  • * Simolestes
  • Sthenarosaurus
  • Stratesaurus
  • 'Stretosaurus'
  • Strongylokrotaphus
  • Styxosaurus
  • Sulcusuchus
  • T
  • Tatenectes
  • Terminonatator
  • * Thalassiodracon
  • * Thalassomedon
  • 'Thaumatosaurus'
  • *Thililua
  • Trememesacleis'
  • *Tricleidus
  • Trinacromerum
  • Tuarangisaurus
  • U
  • Umoonasaurus
  • V
  • Vinialesaurus
  • W
  • Wapuskanectes
  • Westphaliasaurus
  • Woolungasaurus
  • X
  • Y
  • Yuzhoupliosaurus
  • Z
  • Zarafasaura

Welcome to plesiosauria.com

Your online resource for everything 'plesiosaur'.


The Mesozoic Era was the age of the reptiles. Dinosaurs dominated the land, pterosaurs patrolled the skys, and a spectacular variety of aquatic reptiles ruled the seas. These extinct prehistoric marine reptiles came in all sorts of shapes and sizes but perhaps the most bizarre were the plesiosaurs. This website is dedicated to them and their close relatives.


Liopleurodon ferox skeleton


The Plesiosaur Directory is for anyone interested in any aspect of the plesiosaurs and their kin. You will find scientific information about the anatomy, classification and evolution of the group, and information on specific genera and species. There are also sections dedicated to plesiosaur palaeobiology or how the animals were in life, their swimming and dietary behaviour. You can also keep up to date with the latest discoveries on the 'Plesiosaur Bites' blog. I've endeavoured to make this site as image-rich as possible by incorporating photographs of plesiosaur fossils, line drawings of bones and skeletons, and restorations of their possible appearance in life.


Plesiopterys skeleton


There are also sections on plesiosaurs in popular culture including films , toys and living monsters. I'm also developing pages about the researchers behind the science. Finally, get your fill of plesiosaur goodies in the Plesio-Store and join in the ongoing discussions at the Marine Reptile Forum. The aims of this site are long-term and so it will always be under development as our understanding of plesiosaurs develops.

Dr Adam Stuart Smith

Dolichorhynchops bonneri skeleton

Popular pages

Liopleurodon

Plesiosaurus

Locomotion

Living plesiosaurs?

Crystal Palace plesiosaurs

Donate

Support The Plesiosaur Directory with a Paypal donation

Further reading

Playtime

  • Home
  • Author
  • About
  • Publications
  • Artwork
  • Commission
  • Blog
  • Directory
  • Genera
  • Classification
  • Anatomy
  • Evolution
  • Stratigraphy
  • References
  • Papers (PDFs)
  • Palaeobiology
  • Diet
  • Locomotion
  • Neck function
  • Physiology
  • Galleries
  • Photographs
  • Restorations
  • Line drawings
  • Pop culture
  • Toys
  • Fiction
  • Crystal Palace
  • Monsters
  • Sightings?
  • Other
  • Links
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  • Researchers
  • Thanks
  • Forum

The skeletons in the site header are (from left to right): Kronosaurus (in the Museum of Comparative Zoology, Harvard University, Cambridge), Thalassomedon (in the American Museum of Natural History, New York), Cryptoclidus (In the Hunterian Museum and Art Gallery, Glasgow), Rhomaleosaurus (in the Natural History Museum, London), Dolichorhynchops (in the Smithsonian Institution's National Museum of Natural History, Washington) and Thalassiodracon (in the Natural History Museum, London).

©2011 Copyright Adam S. Smith. This site opened in June 2001. Last updated April 2013.