Samuel P. Welles

1909 – 1997

• A review of the North American Cretaceous elasmosaurs
• A new elasmosaur from the Eagle Ford shale of Texas
• A new species of elasmosaur from the Aptian of Colombia and a review of the Cretaceous plesiosaurs
• A review of the North American Crataceous elasmosaurs
• A revision of the Labyrinthodont family Capitosauridae and a description of Parotosaurus peabodyi. n. sp
• Elasmosaurid plesiosaurs with description of new material from California and Colorado
• Hadrokkosaurus bradyi from the upper Moenkopi formation of Arizona
• Late Cretaceous marine reptiles of New Zealand
• The mandible of a diadectid cotylosaur
• Vertebrates from the upper Moenkopi formation of northern Arizona