Two extremely-long necked elasmosaurids, AMNH 1495, holotype of Hydralmosaurus
serpentinus, and AMNH 5835, previously referred to H. serpentinus, are here reviewed in …

Plesiosaurs were a highly successful group of marine reptiles occurring worldwide in the
Jurassic and Cretaceous, but to date few studies have focused on their preservation through …

The upper Maastrichtian elasmosaurid plesiosaur Aristonectes quiriquinensis from central
Chile is here redescribed following further preparation of the holotype. New cranial …

Abstract The Sierra Baguales, situated north of the Torres Del Paine National Park in the
Magallanes region of southern Chile, shows a well-exposed stratigraphic sequence ranging …

Kear, BP, Fordyce, RE, Hiller, N. & Siversson, M., December 2017. A palaeobiogeographical
synthesis of Australasian Mesozoic marine tetrapods. Alcheringa 42, 461-486. ISSN 0311 …

The systematics of the Late Cretaceous non-aristonectine elasmosaurids from Argentinean
Patagonia are poorly known as there is no valid species currently recognized. Here a new …

Aristonectines show a highly derived morphology among elasmosaurid plesiosaurs,
including some species with large body size. A new postcranial skeleton is described from …

ABSTRACT A fragmentary plesiosaur skull from lower Maastrichtian levels of the Conway
Formation, New Zealand, is redescribed. Originally regarded as pertaining to two separate …

Abstract The Snow Hill Island Formation (SHIF; late Campanian–early Maastrichtian) crops
out in the northeast of the Antarctic Peninsula and constitutes the basal part of the late …

The Antarctic plesiosaurian record is critical for understanding the evolution of
elasmosaurids in the southern hemisphere. Elasmosaurids exhibit some of the most …