Marine and terrestrial animals show a mosaic of lineage extinctions and diversifications
during the J urassic–C retaceous transition. However, despite its potential importance in …

This paper redescribes the holotype skull of the aristonectine elasmosaur Morturneria
seymourensis from the upper Maastrichtian of Seymour Island, Antarctica. This description …

This paper describes a new species of elasmosaurid plesiosaur, Aristonectes
quiriquinensis, sp. nov., based on a partial skeleton recovered from upper Maastrichtian …

The holotype of the elasmosaurid Aphrosaurus furlongi from the Maastrichtian levels of the
Moreno Formation is redescribed and considered a valid species based on one …

The holotype of Brancasaurus brancai is one of the most historically famous and
anatomically complete Early Cretaceous plesiosaurian fossils. It derived from the …

Plesiosauria is a diverse clade of marine reptiles that have been studied since the early 19th
century. However, phylogenetic relationships within the group have been contentious due to …

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

Although the fossil record of non-avian dinosaurs from the Cretaceous of Antarctica is the
poorest of any continent, fossils representing at least five major taxonomic groups …

We report a new specimen of the plesiosaur Cardiocorax mukulu that includes the most
complete plesiosaur skull from sub-Saharan Africa. The well-preserved three-dimensional …

New elasmosaurid plesiosaur specimens are described from the Early Maastrichtian of
Angola. Phylogenetic analyses reconstruct the Angolan taxon as an aristonectine …