List of plesiosaur genera
This list of plesiosaurs is a comprehensive listing of all genera that have ever been included in the order Plesiosauria, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomen dubium), or were not formally published (nomen nudum), as well as junior synonyms of more established names, and genera that are no longer considered plesiosaurs.
Scope and terminology
There is no official, canonical list of plesiosaur genera but one of the most thorough attempts can be found on the Plesiosauria section of Mikko Haaramo's Phylogeny Archive; also pertinent is the Plesiosaur Genera section at Adam Stuart Smith's Plesiosaur Directory.
Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include:
- Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type specimens are later assigned to the same genus, the first to be published (in chronological order) is the senior synonym, and all other instances are junior synonyms. Senior synonyms are generally used, except by special decision of the ICZN, but junior synonyms cannot be used again, even if deprecated. Junior synonymy is often subjective, unless the genera described were both based on the same type specimen.
- Nomen nudum (Latin for "naked name"): A name that has appeared in print but has not yet been formally published by the standards of the ICZN. Nomina nuda (the plural form) are invalid, and are therefore not italicized as a proper generic name would be. If the name is later formally published, that name is no longer a nomen nudum and will be italicized on this list. Often, the formally published name will differ from any nomina nuda that describe the same specimen. In this case, these nomina nuda will be deleted from this list in favor of the published name.
- Preoccupied name: A name that is formally published, but which has already been used for another taxon. This second use is invalid (as are all subsequent uses) and the name must be replaced. As preoccupied names are not valid generic names, they will also go unitalicized on this list.
- Nomen dubium (Latin for "dubious name"): A name describing a fossil with no unique diagnostic features. As this can be an extremely subjective and controversial designation, this term is not used on this list.
- See Haaramo, Plesiosauria.
- See Smith, Plesiosaur Genera.
- A. Yu. Berezin (2011). "A new plesiosaur of the family Aristonectidae from the early cretaceous of the center of the Russian platform". Paleontological Journal 45 (6): 648–660. doi:10.1134/S0031030111060037.
- Tai Kubo, Mark T. Mitchell and Donald M. Henderson (2012). "Albertonectes vanderveldei, a new elasmosaur (Reptilia, Sauropterygia) from the Upper Cretaceous of Alberta". Journal of Vertebrate Paleontology 32 (3): 557–572. doi:10.1080/02724634.2012.658124.
- Peggy Vincent and Roger B. J. Benson (2012). "Anningasaura, a basal plesiosaurian (Reptilia, Plesiosauria) from the Lower Jurassic of Lyme Regis, United Kingdom". Journal of Vertebrate Paleontology 32 (5): 1049–1063. doi:10.1080/02724634.2012.686467.
- Roger B. J. Benson, Mark Evans and Patrick S. Druckenmiller (2012). "High Diversity, Low Disparity and Small Body Size in Plesiosaurs (Reptilia, Sauropterygia) from the Triassic–Jurassic Boundary". PLoS ONE 7 (3): e31838. doi:10.1371/journal.pone.0031838. PMC 3306369. PMID 22438869.
- Peggy Vincent, Nathalie Bardet and Emanuela Mattioli (2013). "A new pliosaurid from the Pliensbachian (Early Jurassic) of Normandy (Northern France)". Acta Palaeontologica Polonica. in press. doi:10.4202/app.2011.0113.
- Espen M. Knutsen, Patrick S. Druckenmiller and Jørn H. Hurum (2012). "A new plesiosauroid (Reptilia: Sauropterygia) from the Agardhfjellet Formation (Middle Volgian) of central Spitsbergen, Norway". Norwegian Journal of Geology 92 (2–3): 213–234.
- PLESIOSAURS FROM THE UPPER CRETACEOUS (CENOMANIAN–TURONIAN) TROPIC SHALE OF SOUTHERN UTAH, PART 2: POLYCOTYLIDAE L. Barry Albright Iii, David D. Gillette, and Alan L. Titus, Journal of Vertebrate Paleontology, 2007, 27(1):41-58
- Delfino, M. 2000. Coccodrilli italiani. Page 12 in Barbieri, F., Bernini, F., and Fasola, M., editors. Societas Herpetologica Italica, 3° Congresso Nazionale. Riassunti. Centro Stampa del Comune di Pavia. Abstract. [Italian]
- Delfino, M. 2001. The fossil record of the Italian Crocodylomorpha. 6th European Workshop on Vertebrate Palaeontology, Florence-Montevarchi, Italy, September 19–22, 2001:28. Abstract. [Italian]
- Roger B. J. Benson, Hilary F. Ketchum, Darren Naish and Langan E. Turner (2012). "A new leptocleidid (Sauropterygia, Plesiosauria) from the Vectis Formation (Early Barremian–early Aptian; Early Cretaceous) of the Isle of Wight and the evolution of Leptocleididae, a controversial clade". Journal of Systematic Palaeontology. in press. doi:10.1080/14772019.2011.634444.
- Druckenmiller, Patrick S.; and Russell, Anthony P. (2009). "The new plesiosaurian genus Nichollssaura from Alberta, Canada: replacement name for the preoccupied genus Nichollsia". Journal of Vertebrate Paleontology 29 (1): 276. doi:10.1080/02724634.2009.10010379.
- Espen M. Knutsen, Patrick S. Druckenmiller and Jørn H. Hurum (2012). "Two new species of long-necked plesiosaurians (Reptilia: Sauropterygia) from the Upper Jurassic (Middle Volgian) Agardhfjellet Formation of central Spitsbergen". Norwegian Journal of Geology 92 (2–3): 187–212.
- O'Keefe, F.R. & Street, H.P. 2009; "Osteology of the Cryptocleidoid Plesiosaur Tatenectes laramiensis, with Comments on the Taxonomic Status of the Cimoliasauridae" Journal of Vertebrate Paleontology 29(1):48–57
- E. D. Cope. 1876. On some extinct reptiles and Batrachia from the Judith River and Fox Hills Beds of Montana. Proceedings of the Academy of Natural Sciences of Philadelphia 28:340-359
- Gasparini, Z., Bardet, N., and Iturralde-Vinent, M. (2002). "A new cryptoclidid plesiosaur from the Oxfordian (Late Jurassic) of Cuba". Geobios 35(2): 201-211.
- Zhang, Y (1985). A new plesiosaur from Middle Jurassic of Sichuan Basin. Vertebrata PalAsiatica 23: 235-240.