# Sinopliosaurus

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Extinct genus of reptiles

Sinopliosaurus Temporal range: Early Cretaceous, Aptian–Albian PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Superorder: †Sauropterygia Order: †Plesiosauria Suborder: †Pliosauroidea Family: †Pliosauridae Genus: †Sinopliosaurus Young, 1944 Type species †Sinopliosaurus weiyuanensis Young, 1944

***Sinopliosaurus*** (meaning "Chinese more lizard") is a [dubious](/source/Nomen_dubium) [genus](/source/Genus) of [pliosauroid](/source/Pliosaur) [plesiosaur](/source/Plesiosaur).[1] It lived during the [Aptian](/source/Aptian) and [Albian](/source/Albian) stages of the [Early Cretaceous](/source/Early_Cretaceous)[2] (disputed *Sinopliosaurus* remains have been dated to the [Toarcian](/source/Toarcian) age and were found in the [Ziliujing Formation](/source/Ziliujing_Formation))[3] of the [People's Republic of China](/source/People's_Republic_of_China) - its exact age is unknown. The type species, ***Sinopliosaurus weiyuanensis***, was named and described in 1944 by [Yang Zhongjian](/source/Yang_Zhongjian).[3] One species, ["S." *fusuiensis*](/source/Sinopliosaurus_(dinosaur)), was later shown to be based on teeth from a [spinosaurid](/source/Spinosaur) [theropod](/source/Theropod) [dinosaur](/source/Dinosaur) which is now known as *[Siamosaurus](/source/Siamosaurus)*.[1] *S. weiyuanensis* was considered as a freshwater plesiosaur.[4]

The [holotype](/source/Holotype), **IVPP V140**, consists of three [vertebrae](/source/Vertebra) and a [tooth](/source/Tooth), discovered in a layer of the [Lianmugin Formation](/source/Lianmugin_Formation) ([Tugulu Group](/source/Tugulu_Group)).[3][5]

## See also

- [List of plesiosaur genera](/source/List_of_plesiosaur_genera)

- [Timeline of plesiosaur research](/source/Timeline_of_plesiosaur_research)

## References

1. ^ [***a***](#cite_ref-EBetal08_1-0) [***b***](#cite_ref-EBetal08_1-1) Buffetaut, E.; Suteethorn, V.; Tong, H.; Amiot, R. (2008). "An Early Cretaceous spinosaur theropod from southern China". *Geological Magazine*. **145** (5): 745–748. [Bibcode](/source/Bibcode_(identifier)):[2008GeoM..145..745B](https://ui.adsabs.harvard.edu/abs/2008GeoM..145..745B). [doi](/source/Doi_(identifier)):[10.1017/S0016756808005360](https://doi.org/10.1017%2FS0016756808005360). [S2CID](/source/S2CID_(identifier)) [129921019](https://api.semanticscholar.org/CorpusID:129921019).

1. **[^](#cite_ref-2)** C.-C. Young. (1973). "Plesiosaur remains discovered in Dsungar Basin, Sinkiang". Reports of Paleontological Expedition to Sinkiang (II): Pterosaurian Fauna from Wuerho, Sinkiang. *Memoirs of the Institute of Vertebrate Paleontology and Paleoanthropology Academia Sinica* 11:13-17

1. ^ [***a***](#cite_ref-Young1944_3-0) [***b***](#cite_ref-Young1944_3-1) [***c***](#cite_ref-Young1944_3-2) C.-C. Young. (1944). On the reptilian remains from Weiyuan, Szechuan, China. *Bulletin of the Geological Society of China* 24(3–4):187-205

1. **[^](#cite_ref-4)** Gao, Ting; Li, Da-Qing; Li, Long-Feng; Yang, Jing-Tao (2019-08-13). ["The first record of freshwater plesiosaurian from the Middle Jurassic of Gansu, NW China, with its implications to the local palaeobiogeography"](https://doi.org/10.1186%2Fs42501-019-0043-5). *Journal of Palaeogeography*. **8** (1): 27. [Bibcode](/source/Bibcode_(identifier)):[2019JPalg...8...27G](https://ui.adsabs.harvard.edu/abs/2019JPalg...8...27G). [doi](/source/Doi_(identifier)):[10.1186/s42501-019-0043-5](https://doi.org/10.1186%2Fs42501-019-0043-5). [ISSN](/source/ISSN_(identifier)) [2524-4507](https://search.worldcat.org/issn/2524-4507). [S2CID](/source/S2CID_(identifier)) [199547716](https://api.semanticscholar.org/CorpusID:199547716).

1. **[^](#cite_ref-5)** Z. Dong. (1973). [Cretaceous stratigraphy of Wuerho district, Dsungar Basin]. Reports of Paleontological Expedition to Sinkiang (II): Pterosaurian Fauna from Wuerho, Sinkiang. *Memoirs of the Institute of Vertebrate Paleontology and Paleoanthropology, Academia Sinica* 11:1-7

v t e Sauropterygia Kingdom: Animalia Phylum: Chordata Class: Sauropsida Subclass: Diapsida Clade: Neodiapsida Sauropsida see Sauropsida Sauropterygia see below↓ Sauropterygia Sauropterygia Alexeyisaurus Atopodentatus Palatodonta? Pomolispondylus? Hanosaurus? Helveticosauridae? Eusaurosphargis? Helveticosaurus Saurosphargidae Hemilopas? Largocephalosaurus Prosaurosphargis Saurosphargis Sinosaurosphargis Stauromatodon? Placodontia Paraplacodus Pararcus Placodus Cyamodontoidea Cyamodus Glyphoderma Henodus Macroplacus Parahenodus Placochelys Protenodontosaurus Psephochelys Psephoderma Psephosauriscus Psephosaurus Sinocyamodus Eosauropterygia see below↓ Eosauropterygia Eosauropterygia Brevicaudosaurus? Corosaurus Cymatosaurus Lamprosauroides? Pachypleurosauria Anarosaurus Chusaurus Dactylosaurus Dawazisaurus? Diandongosaurus Dianmeisaurus Dianopachysaurus Hanosaurus? Honghesaurus Keichousaurus Luopingosaurus Majiashanosaurus Neusticosaurus Odoiporosaurus Prosantosaurus Panzhousaurus Qianxisaurus Serpianosaurus Wumengosaurus Nothosauroidea Hispaniasaurus? Sanchiaosaurus Simosauridae Paludidraco Simosaurus Nothosauria Brevicaudosaurus? Carinthiasaurus Ceresiosaurus Germanosaurus Lariosaurus Lijiangosaurus Metanothosaurus Nothosaurus Proneusticosaurus Silvestrosaurus Wangosaurus? Pistosauroidea Augustasaurus Bobosaurus Chinchenia Kwangsisaurus Pistosaurus Tanaisosaurus Wangosaurus? Yunguisaurus Plesiosauria see below↓ Plesiosauria Plesiosauria Anningasaura Bathyspondylus Bobosaurus? Lindwurmia Sinopliosaurus Termatosaurus? Rhomaleosauridae Anningasaura? Archaeonectrus Atychodracon Avalonnectes Bishanopliosaurus? Borealonectes Eurycleidus Lindwurmia? Macroplata Maresaurus Meyerasaurus Rhomaleosaurus Sthenarosaurus Stratesaurus Thaumatodracon Yuzhoupliosaurus? Pliosauridae Anguanax Arminisaurus Attenborosaurus Cryonectes Hauffiosaurus Marmornectes Pachycostasaurus Rhaeticosaurus Thalassiodracon Thalassophonea Eardasaurus Gallardosaurus Liopleurodon Lorrainosaurus Megalneusaurus Peloneustes "Pliosaurus" andrewsi Pliosaurus Simolestes Brachaucheninae Acostasaurus Boyacasaurus Brachauchenius Eiectus Kronosaurus Luskhan Makhaira Megacephalosaurus Monquirasaurus Polyptychodon Sachicasaurus Stenorhynchosaurus Plesiosauroidea Eoplesiosaurus Eretmosaurus Franconiasaurus Leurospondylus Plesionectes Plesiopharos Plesiopterys Plesiosaurus Westphaliasaurus Microcleididae Hydrorion Lusonectes Microcleidus Occitanosaurus Seeleyosaurus Cryptoclidia see below↓ Cryptoclidia Cryptoclididae Opallionectes Colymbosaurinae Abyssosaurus Colymbosaurus Djupedalia Pantosaurus Spitrasaurus Cryptoclidinae Cryptoclidus Kimmerosaurus Ophthalmothule Tatenectes Muraenosaurinae Muraenosaurus Picrocleidus Tricleidus? Vinialesaurus Xenopsaria Leptocleidia Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae Edgarosaurus Manemergus Mauriciosaurus Thililua Palmulasaurinae Pahasapasaurus? Palmulasaurus Occultonectia Plesiopleurodon Sulcusuchus Polycotylinae Eopolycotylus Georgiasaurus Polycotylus Scalamagnus Serpentisuchops Trinacromerum Dolichorhynchia Dolichorhynchops Martinectes Unktaheela Elasmosauridae Callawayasaurus Cimoliasaurus Eromangasaurus Goniosaurus Jucha Lagenanectes Leivanectes Mauisaurus Ogmodirus Orophosaurus Plesioelasmosaurus Scanisaurus Traskasaura Wapuskanectes Woolungasaurus Euelasmosaurida Cardiocorax Libonectes Thalassomedon Elasmosaurinae Albertonectes Elasmosaurus Fluvionectes Hydrotherosaurus? Nakonanectes Styxosaurus Terminonatator Weddellonectia Aphrosaurus Chubutinectes Futabasaurus Fresnosaurus? Hydrotherosaurus? Kawanectes Marambionectes Morenosaurus Tuarangisaurus Vegasaurus Zarafasaura? Aristonectinae Alexandronectes Aristonectes Kaiwhekea Morturneria Wunyelfia

Taxon identifiers Sinopliosaurus Wikidata: Q7524937 Wikispecies: Sinopliosaurus GBIF: 4968422 Open Tree of Life: 4127199 Paleobiology Database: 38180 Taxonomicon: 6447069

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Adapted from the Wikipedia article [Sinopliosaurus](https://en.wikipedia.org/wiki/Sinopliosaurus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Sinopliosaurus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.