Evolution

Operationalizing a Late Origin of Avian Flight

Avian flight evolved higher in the avialan tree than commonly assumed.

Modeling Dragons

Investigating the utility of applying physiological modeling tools to extinct vertebrates

A new paravian dinosaur from the Late Jurassic of North America supports a late acquisition of avian flight

The last two decades have seen a remarkable increase in the known diversity of basal avialans and their paravian relatives. The lack of resolution in the relationships of these groups combined with attributing the behavior of specialized taxa to the …

The tenth skeletal specimen of *Archaeopteryx*

We describe the tenth skeletal specimen of the Upper Jurassic Archaeopterygidae. The almost complete and well-preserved skeleton is assigned to *Archaeopteryx siemensii* Dames, 1897 and provides significant new information on the osteology of the …

Investigating the physiologies of extinct vertebrates

Mechanistic physiological modeling with NicheMapper

Origin of Avian Flight

Breaking the false ground-up/trees-down dichotomy