Birds are one of the most recognizable and diverse groups of modern vertebrates. Over the
past two decades, a wealth of new fossil discoveries and phylogenetic and�…

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�…

The origin and expansion of biological diversity is regulated by both developmental
trajectories, and limits on available ecological niches,,,,. As lineages diversify, an early and�…

Ecological specialization is a central driver of adaptive evolution. However, selective
pressures may uniquely affect different ecomorphological traits (eg, size and shape)�…

The ecological radiation of amphipods is striking among crustaceans. Despite high diversity,
global distribution and key roles in all aquatic environments, little is known about their�…

Time-calibrated phylogenies of living species have been widely used to study the tempo and
mode of species diversification. However, it is increasingly clear that inferences about�…

Selectivity of mass extinctions is thought to play a major role in coupling or decoupling of
taxonomic, morphological, and ecological diversity, yet these measures have never been�…

In the aftermaths of mass extinction events, during radiations of clades, and in several other
evolutionary scenarios, there is often a decoupling of taxonomic diversity and morphological�…

The causes, rate, and selectivity of the end-Cretaceous mass extinction continue to be highly
debated [1–5]. Extinction patterns in small, feathered maniraptoran dinosaurs (including�…

The evolutionary radiation of birds has produced incredible morphological variation,
including a huge range of skull form and function. Investigating how this variation arose with�…