References
References: O
References listed alphabetically
O'Connell (1935) Pleisosaur bones in Arizona; Proceedings of the Geologial Society of America, , pp.376
O'Keefe, F. Robin et. al. (1997) Multivariate allometry and complex heterochrony in an anagenic lineage of pachypleurosaurs (Reptilia, Sauropterygia) from San Giorgio, Switzerland (Triassic, Anisian-Ladinian); Journal of Vertebrate
O'Keefe, F. Robin et. al. (1997) Multivariate allometry and complex heterochrony in an anagenic lineage of Pachypleurosaurs (Reptilia: Sauropterygia) from San Giorgio, Switzerland (Triassic, Anisian-Landinian); Journal of Vertebrat
O'Keefe, F. Robin et. al. (1999) Shape disassociation and inferred heterochrony in a clade of pachypleurosaurs (Reptilia, Sauropterygia)}; Paleobiology, 25(4), pp.504-517
O'Keefe, F. Robin et. al. (2017) Cranial anatomy of Morturneria seymourensis from Antarctica, and the evolution of filter feeding in plesiosaurs of the Austral Late Cretaceous; Journal of Vertebrate Paleontology,
O'Keefe, F. Robin et. al. (2017) Cranial anatomy of Morturneria seymourensis from Antarctica, and the evolution of filter feeding in plesiosaurs of the Austral Late Cretaceous; Journal of Vertebrate Paleontology, (), pp.
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 N), pp.67A
O'Keefe, F. Robin (2000) Phylogeny and convergence in the Plesiosauria (Reptilia; Sauropterygia); PhD
O'Keefe, F. Robin (2001) A cladistic analysis and taxonomic revision of the Plesiosauria (Reptilia: Sauropterygia); Acta Zoologica Fennica, 213(), pp.1-63
O'Keefe, F. Robin (2001) Cladistic Character Dependence in The Plesiosauria, with Functional Interpretations of Correlated Character Sets; Journal of Vertebrate Paleontology, 21(3)
O'Keefe, F. Robin (2001) Ecomorphology of plesiosaur flipper geometry; Journal of Evolutionary Biology, 14(2001), pp.987-991
O'Keefe, F. Robin (2001) Ecomorphology of plesiosaur flipper geometry; Journal of Evolutionary Biology, 14, pp.987-991
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 (2002) The evolution of plesiosaur and pliosaur morphotypes in the Plesiosauria (Reptilia: Sauropterygia); Paleobiology, 28(1), pp.101-112
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 T (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) Morphological and ontogentic 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 (2003) 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 and Wahl, William (2003) 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'Gorman, José P et. al. (2014) Elasmosaurs (Sauropterygia, Plesiosauria) from the La Colonia Formation (Campanian�Maastrichtian), Argentina; Alcheringa: An Australasian Journal of Palaeontology, 37(2), pp.259-267
O'Gorman, José P et. al. (2014) Gastroliths associated with a juvenile elasmosaur (Plesiosauria, Elasmosauridae) from the Snow Hill Island Formation (upper Campanian�lower Maastrichtian), Vega Island, Antarctica; Alc
O'Gorman, José P (2013) Plesiosaurios del Cretácico Superior de Patagonia y La Península Antártica; PhD, pp.528
O'Gorman, José P and Coria, Rodolfo R (2016) A new elasmosaurid specimen from the upper Maastrichtian of Antarctica: new evidence of a monophyletic group of Weddellian elasmosaurids; Alcheringa: An Australasian Journal of Palaeontology
O'Gorman, José P and Gasparini, Zulma Brandoni de (2014) Revision of Sulcusuchus erraini (Sauropterygia, Polycotylidae) from the Upper Cretaceous of Patagonia, Argentina; Alcheringa: An Australasian Journal of Palaeontology, 37(2), pp.
Obata, Ikuwo et. al. (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 et. al. (1972) Preliminary Report on the Cretaceous Reptile Fossils from Hokkaido; Memiors of the National Science Museum, 5, pp.213-223
Obata, Ikuwo et. al. (1989) An Late Cretaceous Plesiosaur (Family Elasmosauridae) from the Wakkanai area, Hokkaido; Bull. Natn. Sci. Mem. Tokyo, Series C, Vol 1(1), pp.25-31
Obata, Ikuwo et. al. (1989) An Upper Cretaceous plesiosaur (family Elasmosauridae) from the Wakkanai area, Hokkaido; Bull. Natn. Sci. Mem. Tokyo, 15(1), pp.25-31
Obata, Ikuwo et. al. (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
Obata, Ikuwo (1989) Notes on Cretaceous sea. 23 - An Upper Cretaceous plesiosaur from Wakkanai, Hokkaido; Aquabiology (Tokyo), 11(2), pp.114-117
Ochev, V. G. (1972) ; Voprosy Geologii Yuzhnogo Urala i Povolzh'ya. Saratovskiy Gosudarstvennyy Universitet, 8, Part 1, pp.170--173
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(Supp
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, Supp
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 In
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) Sauriërs 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
Otero, R A et. al. (2015) New elasmosaurids (Sauropterygia, Plesiosauria) from the Late Cretaceous of the Magallanes Basin, Chilean Patagonia: Evidence of a faunal turnover during the Maastrichtian along the Weddellian Biogeographic Pro
Owen, Richard (1838) A description of Viscount Cole's specimen of Plesiosaurus macrocephalus (Conybeare); Proceedings of the Geological Society, London, II(57), pp.663-667
Owen, Richard (1840) 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) Pliosaurus brachyspondylus = Plesiosaurus brachyspondylus (OWEN 1841) Pliosaurus brachydeirus. Polyptychodon interruptus, P.continus;
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 (1853) A Monograph on the FOSSIL REPTILIA of the CRETACEOUS FORMATIONS - Supplement No IV - Sauroptyerygia (Plesiosaurs) - Supplement; Monograph for the Palaeontographical Society,
Owen, Richard (1857) A Monograph on the FOSSIL REPTILIA of the CRETACEOUS FORMATIONS - Supplement No IV - Sauroptyerygia (Plesiosaurs) - Supplement;
Owen, Richard (1857) A Monograph on the FOSSIL REPTILIA of the CRETACEOUS FORMATIONS - Supplement No IV - Sauroptyerygia (Plesiosaurs) - Supplement;
Owen, Richard (1861) A Monograph of the Fossil Reptilia of the Liassic Formations;
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); Monograph for the Palaeontographical Society,
Owen, Richard (1865) Monograph on the fossil Reptilia of the Liassic formations, Part.1: Sauropterygia.; Transactions of the American Philosophical Society., , pp.40