Abstract The Early Jurassic Jenkyns Event (∼ 183 Ma) was characterized in terrestrial
environments by global warming, perturbation of the carbon cycle, enhanced weathering …

Modern birds are typified by the presence of feathers, complex evolutionary innovations that
were already widespread in the group of theropod dinosaurs (Maniraptoriformes) that …

Triassic beds from Argentina and Brazil provide the most relevant fossil record of early
dinosauriforms in terms of numerical abundance and taxonomic diversity. This record …

The origin and evolutionary relationships of ornithischian dinosaurs are topics that have
undergone a series of substantial revisions. At present there are several competing …

Spinosaurids are some of the most enigmatic Mesozoic theropod dinosaurs due to their
unique adaptations to aquatic environments and their relative scarcity. Their taxonomy has …

Comprising the oldest unequivocal dinosauromorphs in the fossil record, silesaurs play an
important role in the Triassic radiation of dinosaurs. These reptiles provide the main source …

We describe a new small-bodied coelophysoid theropod dinosaur, Pendraig milnerae gen.
et sp. nov, from the Late Triassic fissure fill deposits of Pant-y-ffynnon in southern Wales. The …

During the Mesozoic, non-avian theropods represented one of the most successful clades
globally distributed, with a wide diversity of forms. An example is the clade …

Abelisaurids are medium–large‐sized theropod dinosaurs that were predominant in the
carnivorous fauna during the Late Cretaceous of Gondwana. These predators are abundant …

Aucasaurus garridoi is an abelisaurid theropod from the Anacleto Formation (lower
Campanian, Upper Cretaceous) of Patagonia, Argentina. The holotype of Aucasaurus …