Cranial ornamentation is widespread throughout the extinct non-avialian Ornithodira, being
present throughout Pterosauria, Ornithischia and Saurischia. Ornaments take many forms …

Ornithischians form a large clade of globally distributed Mesozoic dinosaurs, and represent
one of their three major radiations. Throughout their evolutionary history, exceeding 134 …

The late Cretaceous hadrosaurids were the most specialized and diverse clade of
ornithopod dinosaurs. Parsimony and Bayesian methods were implemented to elucidate the …

The well-sampled Late Cretaceous fossil record of North America remains the only high-
resolution dataset for evaluating patterns of dinosaur diversity leading up to the terminal …

Background As gigantic herbivores, sauropod dinosaurs were among the most important
members of Mesozoic communities. Understanding their ecology is fundamental to …

Hadrosaurids were the most derived ornithopods and amongst the most diverse herbivore
dinosaurs during the Late Cretaceous of Europe, Asia, and the two Americas. Here, their …

A new hadrosaurid dinosaur, Arenysaurus ardevoli gen. et sp. nov., from the Late
Maastrichtian of Aren (Huesca, South-central Pyrenees) is described on the basis of a …

The cranial anatomy of the helmet-crested lambeosaurine Hypacrosaurus altispinus
(Ornithischia: Hadrosauridae) is described, with a focus on ontogenetic and individual …

We provide a thorough re-evaluation of the taxonomic diversity, phylogenetic relationships,
and historical biogeography of the lambeosaurine hadrosaurids from the European …

The cranial anatomy of the flat-skulled hadrosaurine Edmontosaurus regalis (Ornithischia:
Hadrosauridae) is extensively described here, based on the holotype and paratype …