Morphology forms the most fundamental level of data in vertebrate palaeontology because it
is through interpretations of morphology that taxa are identified, creating the basis for broad …

Recent years witnessed the discovery of a great diversity of early birds as well as closely
related non-avian theropods, which modified previous conceptions about the origin of birds …

This chapter will cover clade definitions, the relationships within clades as well as the
occasional controversial relationships between different clades. Phylogenies arising from a …

Abelisaurid theropods are well known in Cretaceous beds along South America, particularly
Patagonia. However, the record of latest Cretaceous abelisauroids is still far from …

A characteristic fauna of dinosaurs and other vertebrates inhabited the end-Cretaceous
European archipelago, some of which were dwarves or had other unusual features likely …

Here we provide a detailed description of the postcranial skeleton of the holotype and
referred specimens of Buitreraptor gonzalezorum. This taxon was recovered as an …

Dromaeosaurids were bird-like dinosaurs with a predatory ecology known to forage on fish,
mammals and other dinosaurs. We describe Daurlong wangi gen. et sp. nov., a …

Non-avialan theropod dinosaurs had diverse ecologies and varied skull morphologies.
Previous studies of theropod cranial morphology mostly focused on higher-level taxa or …

The record of abelisaurids in South America, particularly Argentina is relatively abundant.
However, abelisaurid diversity is far from being well-known. Huincul Formation has yielded …

An unabated surge of new and important discoveries continues to transform knowledge of
pennaraptoran biology and evolution amassed over the last 150+ years.! is chapter …