References

List of references by intial letter. Not all the references are complete or correct. If you have more or better information, please let me know.

O'Connell ; 1935; Pleisosaur bones in Arizona; Proceedings of the Geologial Society of America; pp.376:
O'Keefe, F. Robin ; 1998; First occurrence of the plesiosaur genus Peloneustes in the German Jurassic; Journal of Vertebrate Paleontology; 18:3, Suppl.: pp.67--68:
O'Keefe, F. Robin ; 1999; Phylogeny And Convergence In The Plesiosauria; Journal of Vertebrate Paleontology; 19:Supplement to No.3: pp.67A:
O'Keefe, F. Robin ; 2000; Phylogeny and convergence in the Plesiosauria (Reptilia; Sauropterygia)(PhD Thesis, University of Chicago)
O'Keefe, F. Robin ; 2001a; A cladistic analysis and taxonomic revision of the Plesiosauria (Reptilia: Sauropterygia); Acta Zoologica Fennica; 213: pp.1-63:
O'Keefe, F. Robin ; 2001b; Ecomorphology of plesiosaur flipper geometry; Journal of Evolutionary Biology; 14: pp.987-991:
O'Keefe, F. Robin ; 2001c; Cladistic Character Dependence in The Plesiosauria, with Functional Interpretations of Correlated Character Sets; Journal of Vertebrate Paleontology; 21:3:
O'Keefe, F. Robin ; 2002; ; ;
O'Keefe, F. Robin ; 2002; Inference of plesiosaur hunting styles from flipper geometry; parallels among birds, bats, and airplanes; Journal of Vertebrate Paleontology; 22:3, Suppl.: pp.93:
O'Keefe, F. Robin ; 2004; On the cranial anatomy of the polycotylid plesiosaurs, including new material of Polycotylus latipinnis Cope, from Alabama; Journal of Vertebrate Paleontology; 24:2: pp.326-340:
O'Keefe, F. Robin ; 2004; Preliminary description and phylogenetic position of a new plesiosaur (Reptilia, Sauropterygia) from the Toarcian of Holzmaden, Germany; Journal of Paleontology (September 2004); 78:5: pp.973-988:
O'Keefe, F. Robin and Carrano, Matthew ; 2003; Scaling and ecomorphological trends in the evolution of the plesiosaur locomotor system; Journal of Vertebrate Paleontology; 23:3, Suppl.: pp.84:
O'Keefe, F. Robin and Carrano, Matthew ; 2003; Scaling and ecomorphological trends in the evolution of the plesiosaur locomotor system; Journal of Vertebrate Paleontology; 23:3, Suppl.: pp.84:
O'Keefe, F. Robin and Carrano, Matthew ; 2005; Correlated trends in the evolution of the plesiosaur locomotor system; Paleobiology; 31(4) : pp.656-675:
O'Keefe, F. Robin and Hiller, Norton ; 2006; Morphologic and Ontogenetic Patterns in Elasmosaur Neck Length, with comments on the taxonomic utility of neck length variables; Paludicila; 5(4): pp.206-229:
O'Keefe, F. Robin and Wahl, William ; 2003a; Preliminary report on the osteology and relationships of a new aberrant Cryptocleidoid plesiosaur from the Sundance Formation, Wyoming; Paludicila; 4:2: pp.48-68:
O'Keefe, F. Robin and Wahl, William ; 2003b; Current taxonomic status of the plesiosaur Pantosaurus striatus from the Upper Jurassic Sundance Formation, Wyoming; Paludicila; 4:2: pp.48-68:
O'Keefe, F. Robin, Rieppel, Oliver and Sander, P Martin ; 1997; Multivariate allometry and complex heterochrony in an anagenic lineage of pachypleurosaurs (Reptilia, Sauropterygia) from San Giorgio, Switzerland (Triassic, Anisian-Ladinian); Journal of Vertebrate Paleontology; 17:3, Suppl.: pp.67--68:
O'Keefe, F. Robin, Rieppel, Oliver and Sander, P Martin ; 1997; Multivariate allometry and complex heterochrony in an anagenic lineage of Pachypleurosaurs (Reptilia: Sauropterygia) from San Giorgio, Switzerland (Triassic, Anisian-Landinian); Journal of Vertebrate Paleontology; 17:
O'Keefe, F. Robin, Rieppel, Oliver and Sander, P Martin ; 1999; Shape disassociation and inferred heterochrony in a clade of pachypleurosaurs (Reptilia, Sauropterygia)}; Paleobiology; 25:4: pp.504-517:
Obata, Ikuwo ; 1989; Notes on Cretaceous sea. 23 - An Upper Cretaceous plesiosaur from Wakkanai, Hokkaido; Aquabiology (Tokyo); 11:2: pp.114-117:
Obata, Ikuwo, , Maiya, S., Taketani, Y., Futakami, M. and Suzuki, T. ; 1989; An Late Cretaceous Plesiosaur (Family Elasmosauridae) from the Wakkanai area, Hokkaido; Bull. Natn. Sci. Mem. Tokyo; Series C, Vol 15:1: pp.25-31:
Obata, Ikuwo, Hasegawa, Yoshikazu and Otsuka, H. ; 1972; Preliminary Report on the Cretaceous Reptile Fossils from Hokkaido; Memiors of the National Science Museum; 5: pp.213-223:
Obata, Ikuwo, Hasegawa, Yoshikazu and Suzuki, T. ; 1970; Discovery of elasmosaur from the Late Cretaceous Futaba Group; Journal of the Geological Society of Japan; 76:No. 3: pp.161-164:
Obata, Ikuwo, Kawashita, Y., Maiya, S., Taketani, Y., Futakami, M. and Suzuki, T. ; 1989; An Upper Cretaceous plesiosaur (family Elasmosauridae) from the Wakkanai area, Hokkaido; Bull. Natn. Sci. Mem. Tokyo; 15:1: pp.25-31:
Obata, Ikuwo, Kawashita, Y., Maiya, S., Taketani, Y., Futakami, M. and Suzuki, T. ; 1989; An Upper Cretaceous plesiosaur (Family Elasmosauridae) from the Wakkanai area, Hokkaido; Bulletin of the National Science Museum. Series C: Geology and Paleontology; 15:1: pp.25--31:
Ochev, V. G. ; 1972; ; ;
Ochev, V. G. ; 1976; [A new Pliosaur from the Late Cretaceous of Penza Province]; Paleontologicheskii Zhurnal; 1976: pp.135-138:
Ogawa, Kaori and Kakaya, Hideo ; 1995; The Mesozoic Plesiosauria (Sauropterygia, Reptilia) from the Northwest of Panthalassa-Morphology of the Late Cretaceous Plesiosauria form Nakagawa, Hokkaido, Northern Japan; Journal of Vertebrate Paleontology; 15:Supplement to Number 3:
Ogawa, Kaori and Nakaya, H. ; 1995; The Mesozoic Pleiosauria (Sauropterygia, Reptilia) from the northwest of Panthalassa; morphology of the Late Cretaceous Plesiosauria from Nakagawa, Hokkaido, northern Japan; Journal of Vertebrate Paleontology; 15:3, Suppl.: pp.47:
Ogawa, Kaori and Nakaya, H. ; 1996; The Mesozoic Plesiosauria (Sauropterygia, Reptilia) from the Japanese Islands; the Late Cretaceous Plesiosauria from Nakagawa, Hokkaido, northern Japan; International Geological Congress, Abstracts--Congres Geologique Internationale, Resumes; 30, Vol. 2: pp.137:
Oosterink, H.W. ; 1978; Enkele restanten van het reptiel Placodus uit de Winterswijkse Muschelkalk. [Some remains of Placodus from the Winterswijk Musschelchalk]; Grondboor en Hamer; 32: pp.175-179:
Oosterink, H.W. ; 1979; Belangwekkende aanwinst voor collectie Muschelkalk.[Important acquisition for the Musschelchalk collection (i.e. Placodus)]; Freriks Nieuws; 8: pp.9-10:
Oosterink, H.W. ; 1986; Winterswijk, geologie deel II. De Trias-periode (geologie, mineralen en fossielen).; Wetenschappelijke Mededelingen van de Koninklijke Nederlandse Natuurhistorische Vereniging; 178: pp.1-120:
Oosterink, H.W. ; 2003; SauriŽrs uit de Onder-Muschelkalk van Winterswijk; Grondboor & Hamer; 57:1A: pp.1-144:
Oosterink, H.W. and Diepenbroek, G.H. ; 1990; Nieuwe vondsten uit de Winterswijkse Trias; Grondboor en Hamer; 44:6: pp.150--154:
Osborn, H. F. ; 1903; The Reptilian Subclasses Diapsida and Synapsida and the Early history of the Diaptosauria; Memoirs of the American Museum of Natural History; 1:Part VIII: pp.451-507:
Osborn, H. F. ; 1904; A Reclassification of the Reptilia; Science; XiX:476: pp.256-257:
Osborn, H. F. ; 1911; Department of Vertebrate Palaeontology, 41st Ann; Report of the American Museum of Natural History; pp.31-33, 71-72:
Ostrom, John H. ; 1965; Cretaceous Vertebrate Faunas of Wyoming; Wyoming Geological Association Guidebook; 1965: pp.35-41:
Otschew ; 1878; ?; ?;
Otschew ; 1976; ?; ?;
Owen, Richard ; (not known); ; ;
Owen, Richard ; 1838; ; ;
Owen, Richard ; 1839; Crymocetus bernardi; ?;
Owen, Richard ; 1840; Odontography, or a treatise on the COMPARITIVE ANATOMY OF THE TEETH, their physiological relations, mode of development and MICROSCOPIC STRUCTURE in the VERTEBRATE ANIMALSHippolyte Bailliere, foreign booksellers to t; II:
Owen, Richard ; 1840a; Report on British Fossil Reptiles, Part 1; Report of the British Association for the Advancement of Science; 9: pp.43-126:
Owen, Richard ; 1840b; A Description of a Specimen of the Plesiosaurus Macrocephalus, Conybeare, in the Collection of Viscount Cole; Transactions of the Geological Society of London, Second series; V: pp.515-535:
Owen, Richard ; 1841; Description of some remains of a gigantic Crocodilan Saurian, probably marine, from the Lower Greensand at Hythe; and of Teeth from the same formation at Maidstone, referable to the genus Polyptychodon; Proceedings of the Geological Society, London; 3:14: pp.449-451:
Owen, Richard ; 1841a; Pliosaurus brachyspondylus = Plesiosaurus brachyspondylus (OWEN 1841) Pliosaurus brachydeirus. Polyptychodon interruptus, P.continus; ;
Owen, Richard ; 1842; Report on British Fossil Reptiles, Part 2; Report of the British Association for the Advancement of Science; pp.60-204:
Owen, Richard ; 1847; Description of the Atlas, Axis and Subvertebral Wedge Bones in the Plesiosaurus, with remarks on the homologies of those bones; The Annals and Magazine of Natural History; 133:Oct 1847: pp.217-225:
Owen, Richard ; 1850; Plesiosaurus bernardi; ?;
Owen, Richard ; 1851; A Monograph on the FOSSIL REPTILIA of the CRETACEOUS FORMATIONS
Owen, Richard ; 1853a; A MONOGRAPH of the FOSSIL CHELONIAN REPTILES of the WEALDEN CLAYS AND PURBECK LIMESTONES
Owen, Richard ; 1853b; A Monograph on the FOSSIL REPTILIA of the CRETACEOUS FORMATIONS - Supplement No IV - Sauroptyerygia (Plesiosaurs) - Supplement
Owen, Richard ; 1854; Descriptive Catalogue of the fossil and organic remains in of Reptilia and Pisces contained in the Museum of the Royal College of Surgeons of EnglandLondonpp 184pp
Owen, Richard ; 1857a; A Monograph on the FOSSIL REPTILIA of the CRETACEOUS FORMATIONS - Supplement No IV - Sauroptyerygia (Plesiosaurs) - Supplement
Owen, Richard ; 1857b; A Monograph on the FOSSIL REPTILIA of the CRETACEOUS FORMATIONS - Supplement No IV - Sauroptyerygia (Plesiosaurs) - Supplement
Owen, Richard ; 1860; On the orders of fossil and recent Reptilia, and their distribution in time; Report of the British Association for the Advancement of Science; 29: pp.153-166:
Owen, Richard ; 1861; On the remains of a plesiosaurian reptile (Plesiosaurus australis) from the Oolitic Formation of the Middle Island of New Zealand; Geologist; 4: pp.444-445:
Owen, Richard ; 1862; On the remains of a plesiosaurian reptile (Plesiosaurus australis) from the Oolitic Formation of the Middle Island of New Zealand; Annual report of the British Society for the Advancement of Science; 4: pp.122-123:
Owen, Richard ; 1864; A Monograph on the FOSSIL REPTILIA of the CRETACEOUS FORMATIONS - Supplement No IV - Sauroptyerygia (Plesiosaurs)
Owen, Richard ; 1865; A Monograph on the Fossil Reptilia of the Liassic Formations. Part 3pp 1-40
Owen, Richard ; 1869; Monograph on the British Fossil Reptilia from the Kimmeridge Clay; 3: pp 1-12
Owen, Richard ; 1870; Notice on some saurian fossils discovered by J. H. Hood esq., at Waipara, Middle Island, New Zealand; Geological Magazine, London; 7: pp.49-53:
Owen, Richard ; 1871; ?; ?;
Owen, Richard ; 1881; A Monograph on the Fossil Reptilia of the Liassic Formations. Part 3: Ichthyopterygiapp 83-134
Owen, Richard ; 1882; A History of the British Fossil ReptilesCassel & Co., London
Owen, Richard ; 1884; ?; ?;