Classification
Sauropterygia
Sous-ordre
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Plesiosauria
Ordre
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Plesiosauroidea
Superfamille
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Elasmosauridae
Famille
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Weddellonectia
Clade non classé
Sites de découverte 53 sites géolocalisés
Répartition
Principaux pays
Formations géologiques
Distribution temporelle
Bibliographie
Description originale
J. P. O'Gorman and R. A. Coria. 2017. A new elasmosaurid specimen from the upper Maastrichtian of Antarctica: new evidence of a monophyletic group of Weddellian elasmosaurids. Alcheringa 41(2):240-249
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Bibliographie (36)
J. P. O’Gorman, P. M. O’Connor, and E. M. Roberts, M. C. Lamanna. 2025. An elasmosaurid plesiosaur with preserved skull material from the Upper Cretaceous Cape Lamb Member of the Snow Hill Island Formation, Vega Island, Antarctic Peninsula. Ameghiniana 62(1):80-99
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R. A. Otero. 2025. Review of two marine vertebrate assemblages from the Arauco Basin (central Chile) reveals diversity changes throughout the Maastrichtian. Cretaceous Research 166(78):105996
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J. P. O’Gorman, J. I. Canale, and P. Bona, D. E. Tineo, M. Reguero, M. Cárdenas. 2024. A new elasmosaurid (Plesiosauria: Sauropterygia) from the López de Bertodano Formation: new data on the evolution of the aristonectine morphology. Journal of Systematic Palaeontology 22(1):2312302
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J. P. O'Gorman. 2021. The most complete specimen of Kawanectes lafquenianum (Sauropterygia, Plesiosauria): new data on basicranial anatomy and possible sexual dimorphism in elasmosaurids. Cretaceous Research 125(104836):1-19
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R. A. Otero and S. Soto-Acuña. 2021. Wunyelfia maulensis gen. et sp. nov., a new basal aristonectine (Plesiosauria,
Elasmosauridae) from the Upper Cretaceous of central Chile. Cretaceous Research 118:104651
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J. P. O'Gorman. 2020. First record of Kawanectes lafquenianum (Plesiosauria, Elasmosauridae) from the La Colonia Formation of Argentina, with comments on the mandibular morphology of elasmosaurids. Alcheringa 44(1):176-193
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J. P. O'Gorman, S. Santillana, and R. Otero, M. Reguero. 2019. A giant elasmosaurid (Sauropterygia; Plesiosauria) from Antarctica: New information on elasmosaurid body size diversity and aristonectine evolutionary scenarios. Cretaceous Research 102:37-58
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J. P. O'Gorman, K. M. Panzeri, and M. S. Fernández, S. Santillana, J. J. Moly, M. Reguero. 2018. A new elasmosaurid from the upper Maastrichtian López de Bertodano Formation: new data on weddellonectian diversity. Alcheringa 42(4):575-586
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J. P. O'Gorman, R. A. Coria, and M. Reguero, S. Santillana, T. Mors, M. Cardenas. 2018. The first non-aristonectine elasmosaurid (Sauropterygia; Plesiosauria) cranial material from Antarctica: New data on the evolution of the elasmosaurid basicranium and palate. Cretaceous Research 89:248-263
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R. A. Otero, J. P. O'Gorman, and W. L. Moisley, M. Terezow, J. A. W. McKee. 2018. A juvenile Tuarangisaurus keyesi Wiffen and Moisley 1986 (Plesiosauria, Elasmosauridae) from the Upper Cretaceous of New Zealand, with remarks on its skull ontogeny. Cretaceous Research 85:214-231
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N. Hiller, J. P. O'Gorman, and R. A. Otero, A. A. Mannering. 2017. A reappraisal of the Late Cretaceous Weddellian plesiosaur genus Mauisaurus
Hector, 1874. New Zealand Journal of Geology and Geophysics 60(2):112-128
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J. P. O'Gorman and R. A. Coria. 2017. A new elasmosaurid specimen from the upper Maastrichtian of Antarctica: new evidence of a monophyletic group of Weddellian elasmosaurids. Alcheringa 41(2):240-249
DOI ↗
J. P. O'Gorman, M. Talevi, and M. S. Fernández. 2016. Osteology of a perinatal aristonectine (Plesiosauria; Elasmosauridae). Antarctic Science 29(1):61-72
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J. P. O'Gorman. 2016. A small body sized non-aristonectine elasmosaurid (Sauropterygia,
Plesiosauria) from the Late Cretaceous of Patagonia with comments on the relationships of the patagonian and antarctic elasmosaurids. Ameghiniana 53(3):245-268
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R. A. Otero, J. P. O'Gorman, and N. Hiller, F. R. O.'Keefe, R. E. Fordyce. 2016. Alexandronectes zealandiensis gen. et sp. nov., a new aristonectine plesiosaur from the lower Maastrichtian of New Zealand. Journal of Vertebrate Paleontology 36(2):e1054494:1-14
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R. Araujo, M. J. Polcyn, and J. Lindgren, L. L. Jacobs, A. S. Schulp, O. Mateus, A. Olímpio Gonçalves, M.-L. Morais. 2015. New aristonectine elasmosaurid plesiosaur specimens from the Early Maastrichtian of Angola and comments on paedomorphism in plesiosaurs. Netherlands Journal of Geosciences —– Geologie en Mijnbouw 94(1):93-108
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J. P. O'Gorman, L. Salgado, and E. B. Olivero, S. A. Marenssi. 2015. Vegasaurus molyi, gen. et sp. nov. (Plesiosauria, Elasmosauridae), from the Cape Lamb Member (lower maastrichtian) of the Snow Hill Island Formation, Vega Island, Antarctica, and remarks on Wedellian Elasmosauridae. Journal of Vertebrate Paleontology 35(3):e931285:1-21
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R. A. Otero, S. Soto-Acuña, and C. Salazar, J. L. Oyarzún. 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 Province. Andean Geology 42(2):237-267
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R. A. Otero, S. Soto-Acuña, and D. Rubilar-Rogers. 2015. El registro fósil de plesiosaurios (Sauropterigia) en Chile. Publicación Ocasional del Museo Nacional de Historia Natural, Chile 63:151-188
R. A. Otero, J. P. O'Gorman, and N. Hiller. 2015. Reassessment of the upper Maastrichtian material from Chile referred to Mauisaurus Hector, 1874 (Plesiosauroidea: Elasmosauridae) and the taxonomical value of the hemispherical propodial head among austral elasmosaurids. New Zealand Journal of Geology and Geophysics 58(3):252-261
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R. A. Otero, S. Soto-Acuña, and A. O. Vargas, D. Rubilar-Rogers, R. E. Yury-Yáñez, C. S. Gutstein. 2014. Additions to the diversity of elasmosaurid plesiosaurs from the Upper Cretaceous of Antarctica. Gondwana Research 26:772-784
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R. A. Otero, S. Soto-Acuña, and F. R. O.'Keefe, J. P. O.'Gorman, W. Stinnesbeck, M. E. Suárez, D. Rubilar-Rogers, C. Salazar, L. A. Quinzio-Sinn. 2014. Aristonectes quiriquinensis sp. nov., a new highly derived elasmosaurid from the upper Maastrichtian of central Chile. Journal of Vertebrate Paleontology 34(1):100-125
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J. P. O'Gorman, Z. Gasparini, and L. Salgado. 2013. Postcranial morphology of Aristonectes (Plesiosauria, Elasmosauridae) from the Upper Cretaceous of Patagonia and Antarctica. Antarctic Science 25(1):71-82
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R. A. Otero and J. P. O'Gorman. 2013. Identification of the first postcranial skeleton of Aristonectes Cabrera (Plesiosauroidea, Elasmosauridae) from the upper Maastrichtian of the south-eastern Pacific, based on a bivariate graphic analysis. Cretaceous Research 41:86-89
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O. Mateus, M. J. Polcyn, and L. L. Jacobs, R. Arujo, A. S. Schulp, J. Marinheiro, B. Pereira, D. P. Vineyard. 2012. Cretaceous amniotes from Angola: dinosaurs, pterosaurs, mosasaurs, plesiosaurs, turtles. Actas de V Jornadas Internacionales sobre Paleontologia de Dinosaurios y su Entorno, Salas de los Infantes, Burgos
J. P. O'Gorman, Z. Gasparini, and M. Reguero. 2010. Aristonectes parvidens Cabrera (Sauropterygia, Plesiosauria) from Cape Lamb, Vega Island (Upper Cretaceous), Antarctica. XXXI SCAR (Scientific committee on Antarctic Research)
T. Sato, Y. Hasegawa, and M. Manabe. 2006. A new elasmosaurid plesiosaur from the Upper Cretaceous of Fukushima, Japan. Palaeontology 49(3):467-484
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K. Workman Ford. 2006. Stratigraphic positions of marine reptile and dinosaur specimens in the Moreno Formation, in the Tumey Hills and Panoche Hills, Fresno County, California. Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:407-410
G. J. Wilson, P. Schiøler, and N. Hiller, C. M. Jones. 2005. Age and provenance of Cretaceous marine reptiles from the South Island and
Chatham Islands, New Zealand. New Zealand Journal of Geology & Geophysics 48(2):377-387
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Z. Gasparini, N. Bardet, and J. E. Martin, M. Fernandez. 2003. The elasmosaurid plesiosaur Aristonectes Cabrera from the latest Cretaceous of South America and Antarctica. Journal of Vertebrate Paleontology 23(1):104-115
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A. R. I. Cruickshank and R. E. Fordyce. 2002. A new marine reptile (Sauropterygia) from New Zealand: further evidence for a Late Cretaceous Austral radiation of cryptoclidid plesiosaurs. Palaeontology 45(3):557-575
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J. Wiffen and W. L. Moisley. 1986. Late Cretaceous reptiles (families Elasmosauridae and Pliosauridae) from the Mangahouanga Stream, North Island, New Zealand. New Zealand Journal of Geology and Geophysics 29(2):205-252
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G. Warren and I. Speden. 1977. The Piripauan and Haumurian stratotypes (Mata Series, Upper Cretaceous) and correlative sequences in the Haumuri Bluff District, South Marlborough. New Zealand Geological Survey Bulletin 92:1-60
S. P. Welles and D. R. Gregg. 1971. Late Cretaceous marine reptiles of New Zealand. Records of the Canterbury Museum 9(1):1-111
S. P. Welles. 1943. Elasmosaurid plesiosaurs with description of new material from California and Colorado. Memoirs of the University of California 13:125-254
J. Hector. 1874. On the fossil Reptilia of New Zealand. Transactions and Proceedings of the Royal Society of New Zealand 6:333-358