Palaeontologists have long sought to explain the diversification of individual clades to whole
biotas at global scales. Advances in our understanding of the spatial distribution of the fossil …

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

There is a renewed interest in volcanism as the major trigger for dramatic climatic changes
at the Cretaceous–Paleogene transition (KTB), which were accompanied by a decrease in …

Fossil hydrocarbon seeps are present in latest Cretaceous (Maastrichtian) volcaniclastic
shallow shelf sediments exposed on Snow Hill and Seymour Islands, James Ross Basin …

Fossiliferous carbonate concretions are commonly found in sediments deposited in the Late
Cretaceous Western Interior Seaway. Although concretions are diagenetic features, well …

An integrated study of magnetic mass susceptibility (MS), bulk stable isotopes and
calcareous nannofossil paleoecological changes is undertaken on the late Maastrichtian of …

Upper Cretaceous vertebrate records from Chile are mostly known by historical mentions
with unknown repositories and uncertain stratigraphic provenance. This contribution reviews …

Otolith assemblages have rarely been studied across the K-Pg boundary. The late
Maastrichtian Kemp Clay of northeastern Texas and the Fox Hills Formation of North Dakota …

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

One of the most expanded records to contain the final fortunes of ammonoid cephalopods is
within the López de Bertodano Formation of Seymour Island, James Ross Basin, Antarctica …