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New Exceptional Specimens of Prognathodon overtoni (Squamata, Mosasauridae) from the Upper Campanian of Alberta, Canada, and the Systematics and Ecology of the Genus
ABSTRACT Currently known from the early Campanian to late Maastrichtian, Prognathodon constitutes a group of mosasaurine mosasaurs that typically possessed massive jaws. Only four articulated skullsExpand
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THE FIRST REPORTED LEPTONECTES (REPTILIA: ICHTHYOSAURIA) WITH ASSOCIATED EMBRYOS, FROM SOMERSET, ENGLAND
A large but incomplete skeleton of an ichthyosaur (CAMSM J 13579) from Street, Somerset, in the Sedgwick Museum collection is associated with two embryos. The morphology of the pelvis and humerusExpand
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An Ichthyosaurus breviceps collected by Mary Anning: new information on the species
An ichthyosaur in the collections of the Sedgwick Museum, Cambridge (CAMSMX.50187) was collected in the nineteenth century by the renowned fossil collector Mary Anning, but has never beenExpand
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A New Species of Ichthyosaurus from the Lower Jurassic of West Dorset, England, U.K.
ABSTRACT We describe a new species of Lower Jurassic (Hettangian/Sinemurian—Pliensbachian) ichthyosaur, Ichthyosaurus anningae, sp. nov., from west Dorset, England, U.K. The holotype of I. anningaeExpand
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A taxonomic reassessment of Ichthyosaurus communis and I. intermedius and a revised diagnosis for the genus
Ichthyosaurus communis De la Beche & Conybeare, 1821 and I. intermedius Conybeare, 1822 have been considered synonymous by some researchers, but distinct species by others. The distinction betweenExpand
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REDISCOVERY OF WILBUR KNIGHT'S MEGALNEUSAURUS REX SITE: NEW MATERIAL FROM AN OLD PIT
We report the rediscovery of Wilbur Knight’s 1895 excavation site of the large Jurassic (Oxfordian) pliosaur Megalneusaurus rex from the Sundance Formation. The type specimen (UW4602) is housed atExpand
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NEW MATERIAL FROM THE TYPE SPECIMEN OF MEGALNEUSAURUS REX (REPTILIA: SAUROPTERYGIA) FROM THE JURASSIC SUNDANCE FORMATION, WYOMING
In 2008, an articulated distal forelimb of the type specimen of the large pliosauromorph Megalneusaurus rex (UW 4602) was discovered adjacent to the original excavation pit from which two hindlimbsExpand
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New information on the skull roof of Protoichthyosaurus (Reptilia: Ichthyosauria) and intraspecific variation in some dermal skull elements
A previously unrecognized specimen of Protoichthyosaurus prostaxalis , LEICT G142.1991, from the Lower Jurassic of Barrow-upon-Soar, Leicestershire, UK, includes an almost complete three-dimensionalExpand
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The Taxonomic Utility of Forefin Morphology in Lower Jurassic Ichthyosaurs: Protoichthyosaurus and Ichthyosaurus
ABSTRACT The validity of the parvipelvian ichthyosaur genus Protoichthyosaurus was evaluated by examining the type material and recently recognized specimens. Protoichthyosaurus has a wide forefinExpand
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Palaeoecology of the marine reptiles of the Redwater Shale Member of the Sundance Formation (Jurassic) of central Wyoming, USA
The Redwater Shale Member (Oxfordian) of the Sundance Formation was deposited in the foreland basin of the Cordillera during the last and largest marine transgression of the Jurassic in NorthExpand
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