Non‐avian dinosaurs went extinct 66 million years ago, geologically coincident with the
impact of a large bolide (comet or asteroid) during an interval of massive volcanic eruptions …

Despite nearly two centuries of investigation, a comprehensive understanding of dinosaur
biology has proven intractable. The recent development of means to study tissue-level …

The geological and paleoenvironmental setting and the vertebrate taxonomy of the
fossiliferous, Cenomanian-age deltaic sediments in eastern Morocco, generally referred to …

A study of the distribution of dinosaurian body masses in the Dinosaur Park Formation (DPF;
Campanian; southern Alberta), reveals a prominent negative skew; a pattern distinct from …

Despite its iconic status as the king of dinosaurs, Tyrannosaurus rex biology is incompletely
understood. Here, we examine femur and tibia bone microstructure from two half-grown T …

Background During the growth of complex multicellular organisms, chronological age, size
and morphology change together in a hierarchical and coordinated pattern. Among extinct …

The independent evolution of gigantism among dinosaurs has been a topic of long-standing
interest, but it remains unclear if gigantic theropods, the largest bipeds in the fossil record, all …

Fossil bone microanalyses reveal the ontogenetic histories of extinct tetrapods, but
incomplete fossil records often result in small sample sets lacking statistical strength. In …

Well-sampled dinosaur communities from the Jurassic through the early Late Cretaceous
show greater taxonomic diversity among larger (> 50 kg) theropod taxa than communities of …

Isolated small theropod teeth are abundant in vertebrate microfossil assemblages, and are
frequently used in studies of species diversity in ancient ecosystems. However, determining …