The L ate J urassic to E arly C retaceous interval represents a time of environmental
upheaval and cataclysmic events, combined with disruptions to terrestrial and marine …

Abstract The interfingering Baruungoyot and Nemegt Formations of Mongolia host an
exceptional diversity of oviraptorosaurs that is unique in including members of all three Late …

Despite dominating biodiversity in the Mesozoic, dinosaurs were not speciose. Oviparity
constrained even gigantic dinosaurs to less than 15 kg at birth; growth through multiple …

The defining masterwork on the evolution of reptiles. Over 300 million years ago, an early
land vertebrate developed an egg that contained the embryo in an amnion, allowing it to be …

Resolving the evolutionary relationships of early diverging ('basal') ornithischian dinosaurs
is a challenging topic in palaeontology, with multiple competing hypotheses on the …

Summary The importance of adaptation [1–4] versus organizational constraints [5–7] in
shaping common macroevolutionary trends remains unclear [8]. The fossil record is key to …

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

Late Cretaceous trends in Asian dinosaur diversity are poorly understood, but recent
discoveries have documented a radiation of oviraptorosaur theropods in China and …

Abstract The Cretaceous–Paleogene (KPg) boundary, one of Earth's five major extinction
events, occurred just before the appearance of Placentalia in the fossil record. The Gobi …

Although intensified work on the volcaniclastic-rich sediments of the fossil-bearing
Mussentuchit Member (uppermost Cedar Mountain Formation, Utah) has provided a refined …