The cause of the end-Cretaceous mass extinction is vigorously debated, owing to the
occurrence of a very large bolide impact and flood basalt volcanism near the boundary …

The Cretaceous-Paleogene event was the last mass extinction event, yet its impact and long-
term effects on species-level marine vertebrate diversity remain largely uncharacterized. We …

Upper Cretaceous coastal marine deposits are widespread in the Southern Urals with a
number of marine vertebrates previously reported from this region. However, previous …

Although the European dinosaur succession during the latest Cretaceous and its
relationship with the Cretaceous-Paleogene (K-Pg) mass extinction has been the focus of …

Abstract The Cerro Fortaleza Formation is a stratigraphic unit that crops out near the Cerro
Fortaleza hill, northwestern Santa Cruz province, Argentina. This unit has been well-known …

Summary The Cretaceous–Palaeogene (K–Pg) mass extinction profoundly altered
vertebrate ecosystems and prompted the radiation of many extant clades [1, 2]. Sharks …

Here we describe a new, previously unrecognized elasmobranch microfossil assemblage
consisting of isolated dental material from late Pliensbachian marginal marine, near-shore …

It can be challenging to identify the forces that drive speciation in marine environments for
organisms that are capable of widespread dispersal because their contemporary …

Sharks (Selachimorpha) are iconic marine predators that have survived multiple mass
extinctions over geologic time. Their prolific fossil record is represented mainly by isolated …

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 …