Osteology of the Cryptocleidoid Plesiosaur Tatenectes laramiensis, with Comments on the Taxonomic Status of the Cimoliasauridae

@inproceedings{OKeefe2009OsteologyOT,
  title={Osteology of the Cryptocleidoid Plesiosaur Tatenectes laramiensis, with Comments on the Taxonomic Status of the Cimoliasauridae},
  author={F. Robin O'Keefe and Hallie Street},
  year={2009}
}
ABSTRACT Recent field work in the Bighorn Basin, Wyoming has recovered significant new material of the plesiosaur Tatenectes laramiensis. The majority of cryptocleidoid plesiosaurs have been recovered from Middle and Upper Jurassic units (Oxford and Kimmeridge Clays, respectively) in the United Kingdom, but Tatenectes laramiensis is one of at least two cryptocleidoids known from the Upper Sundance Member of the Sundance Formation (Oxfordian) of North America. Although poorly known, they bear… 

A New Skeleton of the Cryptoclidid Plesiosaur Tatenectes laramiensis Reveals a Novel Body Shape Among Plesiosaurs

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ABSTRACT This study presents the first plesiosaurs recovered from the Jurassic of the Atacama Desert that are informative at the genus level. One specimen is represented by an articulated axial

Osteology and Relationships of Colymbosaurus Seeley, 1874, Based on New Material of C. svalbardensis from the Slottsmøya Member, Agardhfjellet Formation of Central Spitsbergen

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Two new species of long-necked plesiosaurians (Reptilia: Sauropterygia) from the Upper Jurassic (Middle Volgian) Agardhfjellet Formation of central Spitsbergen

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References

SHOWING 1-10 OF 68 REFERENCES

Current Taxonomic Status of the Plesiosaur Pantasaurus Striatus from the Upper Jurassic Sundance Formation, Wyoming

The taxon MuraenQSOUrus reedii Mebl 1912 is shown to be a junior synonym of Pantowurus striatus and it is believed that Panlosaurus striatus is a valid taxon.

A Cladistic Analysis and Taxonomic Revision of the Plesiosauria (Reptilia: Sauropterygia)

The Plesiosauria is found to by polyphyletic due to the inclusion of the Polycotylidae; this second clade is instead a member of the Plesiosauroidea, and thus more closely related to elasmosaurs than to other ‘pliosaurs’.

A New Marine Reptile (Sauropterygia) from New Zealand: Further Evidence for A Late Cretaceous Austral Radiation of Cryptoclidid Plesiosaurs

Kaiwhekea katiki gen. et sp. nov. represents the first described cryptoclidid plesiosaurian from New Zealand. It is one of the largest cryptoclidids known, at a length of over 6.5 m, and represents

Preliminary Report on the Osteology and Relationships of a New Aberrant Cryptocleidoid Plesiosaur from the Sundance Formation, Wyoming

The cryptocleidoid plesiosaur Taktwcflts laram.eruiS, new genus, is described from the Redwater Shale: Member of the Sundance fonnation. Narrona County, Wyommg.. The bolotypc of this species was a

THE ELASMOSAURID PLESIOSAUR ARISTONECTES CABRERA FROM THE LATEST CRETACEOUS OF SOUTH AMERICA AND ANTARCTICA

The dental morphology and peculiar occlusal pattern, forming an interlocking trap, suggest that Aristonectes strained a diet of small, soft organisms from the water.

New plesiosaurs from the Upper Cretaceous of Antarctica

  • S. ChatterjeeB. Small
  • Geography, Environmental Science
    Geological Society, London, Special Publications
  • 1989
Abstract New plesiosaur remains from the Upper Cretaceous Lopez de Bertodano Formation (late Campanian-Maastrichtian) of Seymour Island, Antarctic Peninsula include Cryptoclididae and Elasmosauridae.

A pliosaur (Reptilia, Sauropterygia) exhibiting pachyostosis from the Middle Jurassic of England

A new and unusual pliosaurid from the Peterborough Member, Oxford Clay Formation (Callovian, Jurassic) of Cambridgeshire, UK, exhibits a type of pachyostosis and bone thickening of the rib cage and

Reassessment of the Early Cretaceous plesiosaur Cimoliasaurus maccoyi Etheridge, 1904 (Reptilia : Sauropterygia) from White Cliffs, New South Wales

A review of 'cimoliasaurian' taxa described from the Callovian to Maastrichtian of Europe, North and South America, New Zealand and Australia indicates that all can either be reassigned or represent nomina dubia.

Muraenosaurus? Reedii, Sp. Nov. and Tricleidus? Laramiensis Knight, American Jurassic Plesiosaurs

The species, judging from the remains at hand, is one of the most primitive found in America and in all probability belongs to a new genus and is provisionally placed with the English genus Muraenosaurus Seeley,' which it closely resembles in several respects.

Notes on some Reptile finds from the Mesozoic of Scania

Abstract The material here described includes 1.) A Plesiosaurian pubis (fig. 1) from the Lower Campanian at Onnestad, N. E. Scania. The bone is with great probability referable to Scanisaurus cf.
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