15 research outputs found
A new elasmosaurid specimen from the upper Maastrichtian of Antarctica: new evidence of a monophyletic group of Weddellian elasmosaurids
A non-aristonectine plesiosaur from Antarctica reveals new data on the mandibular symphysis of elasmosaurids
A new elasmosaurid from the upper Maastrichtian LĂłpez de Bertodano Formation: new data on weddellonectian diversity
Can vertebral remains differentiate more than one species of Australian Cretaceous ichthyosaur?
Plesiosaurios de la FormaciĂłn Allen (Campaniano-Maastrichtiano) en el Ărea del Salitral de Santa Rosa (Provincia de RĂo Negro, Argentina)
A rare new Pliensbachian plesiosaurian from the Amaltheenton Formation of Bielefeld in northwestern Germany
First evidence of a large predatory plesiosaurian from the Lower Cretaceous non-marine âWealden faciesâ deposits of northwestern Germany
The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonianâupper Campanian) and Snow Hill Island Formation (upper Campanianâlower Maastrichtian), James Ross Island
Elasmosaurs are recorded for the first time in the Lachman Crags Member (Beta Member) of the Santa Marta Formation (lower Campanian) and in the Herbert Sound Member of the Snow Hill Island Formation (upper Campanian). These are the first elasmosaurids from James Ross Island, Antarctic Peninsula. These records greatly improve our knowledge of the taxonomic diversity of plesiosaurs of the Santa Marta Formation and Herbert Sound Member of the Snow Hill Island Formation, and extend the lower limit of the record of Elasmosauridae in Antarctica to the lower Campanian, making this the oldest record of an Antarctic elasmosaur