We report here a new elasmosaurid from the early Maastrichtian at Bentiaba, southern
Angola. Phylogenetic analysis places the new taxon as the sister taxon to Styxosaurus …

An extensive cladistic analysis comprising 41 plesiosaur taxa and 171 characters is
performed and a phylogenetic hypothesis is presented. Definitions and diagnoses of all …

The femoral hemispherical articular head was regarded as autapomorphic of Mauisaurus
haasti Hector, 1874 from the upper Campanian of New Zealand. Review of three …

Elasmosaurids are a monophyletic group of cosmopolitan plesiosaurs with extremely long
necks. Although abundant elasmosaurid material has been collected from the Upper …

Plesiosaurian marine reptiles evolved a wide range of body shapes during the Jurassic and
Cretaceous, including long-necked forms. Many Late Cretaceous members of the clade …

A postcranial specimen from the lower Maastrichtian levels of the Conway Formation, Middle
Waipara River, North Canterbury, New Zealand shows clear elasmosaurid affinities, based …

Elasmosaurids are one of the most abundant fossil marine reptile groups identified from the
Upper Cretaceous strata of Antarctica. However, the documented record of intact …

Cimoliasaurus maccoyi Etheridge, 1904 is a poorly known plesiosauroid from the lower
Cretaceous (Aptian) opal-bearing deposits (Doncaster Member, Wallumbilla Formation) of …

José P. O'Gorman, Eduardo Olivero & Daniel A. Cabrera. December 2012. Gastroliths
associated with a juvenile elasmosaur (Plesiosauria, Elasmosauridae) from the Snow Hill …

Historically, the systematics of the Plesiosauria (Reptilia, Sauropterygia) were based largely
on postcranial characters (Persson, 1963; Brown, 1981). Several factors account for this …