The first relatively complete exoccipital-opisthotic from the braincase of the Callovian pliosaur, Liopleurodon

  title={The first relatively complete exoccipital-opisthotic from the braincase of the Callovian pliosaur, Liopleurodon},
  author={Leslie F. No{\`e} and Jeff Liston and Mark David Evans},
  journal={Geological Magazine},
  pages={479 - 486}
A newly recognized left exoccipital-opisthotic of a Callovian pliosaur, derived from the Peterborough or lower Stewarby Members of the Oxford Clay Formation of Peterborough, is described and figured. This isolated bone is tentatively identified as belonging to an ‘adult’ individual of Liopleurodon ferox that is inferred to have had a skull length of 1.26 metres and an overall body length of 6.39 metres. 
A partial plesiosaurian braincase from the Upper Cretaceous of Sweden
Abstract A partial exoccipital–opisthotic from the uppermost lower Campanian (Upper Cretaceous) of the Åsen locality, Kristianstad Basin, southernmost Sweden, is described and illustrated. The fossil
Braincase of a Polycotylid Plesiosaur (Reptilia: Sauropterygia) from the Upper Cretaceous of Manitoba, Canada
A virtual reconstruction of the braincase of a polycotylid plesiosaur referable to Dolichorhynchops from the Niobrara Formation was created by using a three-dimensional scanning technique that produces accurate reconstruction of missing or damaged elements and demonstrates the three- dimensional relationships among the elements.
Cladistic analysis using 43 discrete cranio-dental and vertebral characters coded for 16 ingroup and one outgroup taxon supports this conclusion, indicating that E. carinognathus is a crown-group elasmosaurid of more derived grade than Occitanosaurus (Lower Jurassic, Toarcian, France).
The occurrence of the Middle Jurassic pachycormid fish Leedsichthys
A review of the occurrences of the Middle Jurassic pachycormid fish Leedsichthys is presented, including a new French locality. The variety of past misidentifications of these remains is noted, and
A New Cretaceous Pliosaurid (Reptilia, Plesiosauria) from the Carlile Shale (Middle Turonian) of Russell County, Kansas
ABSTRACT The Eulert pliosaurid remains (FHSM VP-321) housed at the Sternberg Museum of Natural History (Kansas, U.S.A.) include one of the world's best examples of a Cretaceous pliosaurid plesiosaur
A New Species of Pliosaurus (Sauropterygia, Plesiosauria) from the Upper Jurassic of Northwestern Patagonia, Argentina
This new record reinforces the hypothesis of a trend toward the shortening of the mandibular symphysis observed in late Kimmeridgian—Tithonian species from the northern hemisphere and may be interpreted as the result of predatory and/or reproductive behaviors.
The cranial anatomy and taxonomy of Peloneustes philarchus (Sauropterygia, Pliosauridae) from the Peterborough Member (Callovian, Middle Jurassic) of the United Kingdom
Well-preserved material clearly indicates that P. philarchus lacked nasals, but possessed a lacrimal, and a previously unrecognised ‘palpebral’ forms part of the dorsal orbit margin adjacent to the prefrontal.
Cranial Anatomy of Thalassiodracon hawkinsii (Reptilia, Plesiosauria) from the Early Jurassic of Somerset, United Kingdom
The relatively long neck and small skull of Thalassiodracon indicate that the robust skeleton and macropredaceous habits of rhomaleosaurids and pliosaurids were derived independently.
Anningasaura, A Basal Plesiosaurian (Reptilia, Plesiosauria) from the Lower Jurassic of Lyme Regis, United Kingdom
Anningasaura lymense is a plesiomorphic Early Jurassic taxon that provides anatomical data that clarify the early evolutionary history of Plesiosauria, and is made the holotype of a new genus and species.
The Anatomy of Stratesaurus (Reptilia, Plesiosauria) from the Lowermost Jurassic of Somerset, United Kingdom
One of the oldest plesiosaurians, Stratesaurus taylori from the earliest Hettangian of the United Kingdom, is provided, due to its plesiomorphic morphology and well-characterized anatomy, to be recommended as an ingroup representative of Plesiosauria for future cladistic analyses of Triassic sauropterygians.


On the Structure of the Skull of a Pliosaur
  • C. W. Andrews
  • History
    Quarterly Journal of the Geological Society of London
  • 1897
In the present communication I propose to give a short account of the cranial structure of the Plesiosaurian reptile known as Pliosaurus ferox (Sauvage), a very fine skull of which has recently been
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
On the Remains and Affinities of five Genera of Mesozoic Reptiles
  • R. Lydekker
  • Biology
    Quarterly Journal of the Geological Society of London
  • 1889
Introductory. The following communication treats of certain remains referred to four species of English Mesozoic Reptiles, some of which were first described or named by Professor H. G. Seeley, and
The Osteology of the Reptiles
IN no domain of zoological science have the con tributions of American naturalists been more splendid than in that of vertebrate palaeontology, and in the list of pioneer workers in this domain an
III.—Preliminary Notes on some New and little-known British Jurassic Fishes
  • A. Woodward
  • Environmental Science
    Geological Magazine
  • 1889
Since the works of Agassiz and Egerton, few contributions have been made to the knowledge of British Jurassic “Ganoid” and “Teleostean” Fishes, and a considerable amount of undescribed material has
A Descriptive Catalogue of the Marine Reptiles of the Oxford Clay
THE scientific value of the remains obtained by Messrs. Leeds from the Oxford Clay near Peter-borough is exemplified by the groups forming the subject of the present, and concluding, volume of this
The Peterborough Member (Callovian, Middle Jurassic) of the Oxford Clay Formation at Peterborough, UK
King’s Dyke brick pit, Whittlesey, near Peterborough, Cambridgeshire, provides a continuous section through the Peterborough Member (formerly known as the Lower Oxford Clay) of the Oxford Clay
A Geologic Time Scale 1989
List of tables List of figures Preface 1. Introduction 2. The chronometric (numerical) scale 3. The chronostratic scale 4. Isotopic methods, dates, precision and database 5. Chronometric calibration