New analysis refutes James Watson’s claim he was first to recognize significance of famed photograph 51

Blood flow rates to long bones of archosaurs reveal high aerobic metabolic rates and endothermy throughout most of their evolutionary history

The Upper Triassic Pebbly Arkose Formation of the Mid-Zambezi Basin, Zimbabwe is yielding important evidence of a diverse terrestrial/freshwater biome. A partial, associated skeleton collected from...

Why did our ancestors ever give up the cloaca?

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We describe a close relative of Spinosaurus aegyptiacus, the sail-backed, fish-eating giant from nearshore deposits of northern Africa. Spinosaurus mirabilis sp. nov., discovered in the central Sahara...

Absolutely adorable, Tyrannoroter was one of the first herbivores on land. Art by Hannah Fredd. I want to pet Tyrannoroter. I can’t help it. The moment the...

Vomit is gross—but 290-million-year-old vomit is a scientific marvel

Through fieldwork and innovative research, he transformed how scientists and the public perceive the prehistoric world.

Wide-gauge posture in the limb skeleton of Titanosauriformes is an exaptation to gigantism, as it is not correlated with body size in deeply branching titanosaurs.

Abstract. Sauropods, the largest terrestrial animals, were a clade of quadrupedal dinosaurs nested within sauropodomorphs, whose early representatives were