^ abHilary F. Ketchum; Roger B. J. Benson (2011). “A new pliosaurid (Sauropterygia, Plesiosauria) from the Oxford Clay Formation (Middle Jurassic, Callovian) of England: evidence for a gracile, longirostrine grade of Early-Middle Jurassic pliosaurids”. Special Papers in Palaeontology86: 109–129. doi:10.1111/j.1475-4983.2011.01083.x.
^O'Keefe, F. R. (2008). “Cranial anatomy and taxonomy of Dolichorhynchops bonneri new combination, a polycotylid (Sauropterygia: Plesiosauria) from the Pierre Shale of Wyoming and South Dakota”. Journal of Vertebrate Paleontology28 (3): 664–676. doi:10.1671/0272-4634(2008)28[664:caatod]2.0.co;2.
Adams, D. A. (1977), Trinacromerum bonneri, a new polycotylid plesiosaur from the Pierre Shale of South Dakota and Wyoming, Unpublished Masters thesis, University of Kansas, 97 pages
Adams, D. A. (1997). “Trinacromerum bonneri, new species, last and fastest pliosaur of the Western Interior Seaway”. Texas Journal of Science49 (3): 179–198.
Bonner, O. W. (1964), An osteological study of Nyctosaurus and Trinacromerum with a description of a new species of Nyctosaurus, Unpub. Masters Thesis, Fort Hays State University, 63 pages
Carpenter, K. (1996). “A Review of short-necked plesiosaurs from the Cretaceous of the western interior, North America”. Neues Jahrbuch für Geologie und Paläeontologie Abhandlungen (Stuttgart) 201 (2): 259–287.
Everhart, M. J. (2003). “First records of plesiosaur remains in the lower Smoky Hill Chalk Member (Upper Coniacian) of the Niobrara Formation in western Kansas”. Transactions of the Kansas Academy of Science106 (3–4): 139–148. doi:10.1660/0022-8443(2003)106[0139:FROPRI]2.0.CO;2.
Everhart, M. J. (2004a). “Plesiosaurs as the food of mosasaurs; new data on the stomach contents of a Tylosaurus proriger (Squamata; Mosasauridae) from the Niobrara Formation of western Kansas”. The Mosasaur7: 41–46.
Everhart, M. J. (2004b). “New data regarding the skull of Dolichorhynchops osborni (Plesiosauroidea: Polycotylidae) from rediscovered photos of the Harvard Museum of Comparative Zoology specimen”. Paludicola4 (3): 74–80.
Everhart, M. J. (2005). Oceans of Kansas - A Natural History of the Western Interior Sea. Indiana University Press
Everhart, M.J.; Decker, R.; Decker, P. (2006). “Earliest remains of Dolichorhynchops osborni (Plesiosauria: Polycotylidae) from the basal Fort Hays Limestone, Jewell County, Kansas”. Transactions of the Kansas Academy of Science109 (3–4): 261. (abstract)
Everhart, M. J. (2007). Sea Monsters: Prehistoric Creatures of the Deep. ISBN978-1-4262-0085-4
O'Keefe, F. R. (2004). “On the cranial anatomy of the polycotylid plesiosaurs, including new material of Polycotylus latipinnis Cope, from Alabama”. Journal of Vertebrate Paleontology24 (2): 326–340. doi:10.1671/1944.
Sato, T. (2005). “A new Polycotylid Plesiosaur (Reptilia: Sauropterygia) from the Upper Cretaceous Bearpaw Formation in Saskatchewan, Canada”. Journal of Paleontology79 (5): 969–980. doi:10.1666/0022-3360(2005)079[0969:ANPPRS]2.0.CO;2.
Sternberg, C. H. (1922). “Explorations of the Permian of Texas and the chalk of Kansas, 1918”. Transactions of the Kansas Academy of Science30 (1): 119–120. doi:10.2307/3624047.
Sternberg, G. F.; Walker, M. V. (1957). “Report on a plesiosaur skeleton from western Kansas”. Transactions of the Kansas Academy of Science60 (1): 86–87. doi:10.2307/3627008.
Williston, S. W. (1902). “Restoration of Dolichorhynchops osborni, a new Cretaceous plesiosaur”. Kansas University Science Bulletin1 (9): 241–244.
Williston, S. W. (1903). “North American plesiosaurs”. Field Columbian Museum, Pub. 73. Geological Series 2 (1): 1–79.