Body mass estimates for 1534 North American fossil mammal species show that new
species are on average 9.1% larger than older species in the same genera. This within …

Neosauropod dinosaurs were gigantic, herbivorous dinosaurs. Given that the limb skeleton
is essentially a plastic, mobile framework that supports and moves the body, analysis of long …

In the lead-up to the Cretaceous/Paleogene mass extinction, dinosaur diversity is argued to
have been either in long-term decline, or thriving until their sudden demise. The latest …

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 …

The Geozoic encompasses the 3.6 Ga interval in Earth history when life has existed. Over
this time, life has diversified from exclusively tiny, single-celled organisms to include large …

Birds today are the most diverse clade of terrestrial vertebrates, and understanding why
extant birds (Aves) alone among dinosaurs survived the Cretaceous-Paleogene mass …

Traditional categories of locomotor habit in mammals are largely based on variables that are
continuous in nature, making intermediate forms difficult to evaluate quantitatively …

Long-bone histology indicates that the most common early dinosaur, the prosauropod
Plateosaurus engelhardti from the Upper Triassic of Central Europe, had variable life …

The foundations of several disciplines can be expressed as simple quantitative laws, for
example, Newton's laws or the laws of thermodynamics. Here I present five laws derived …

Previous growth-rate studies covering 14 dinosaur taxa, as represented by 31 data sets, are
critically examined and reanalyzed by using improved statistical techniques. The …