Paul Wignallteaches palaeontology and sedimentology at the University of Leeds. Speaking to Times Evoke, he explains past — and present — trajectories of huge species losses on Earth. What is the core ...

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The Permian Period lasted from 298.9 million years ago to the start of the Triassic Period, 251.9 million years ago. When the Early Permian epoch began, many animal lineages had just a few varieties ...

Crocodiles are essentially the dinosaurs of the modern era, and they’ve been around for quite some time! Still, there are creatures that predate even these living fossils, even if they look quite ...

In a review of previous studies, the authors found evidence for endothermy in very early ancestors of the sauropsid and synapsid lineages: pareiasaurs, large reptile-like herbivores shielded by a bony ...

Terrestrial ecosystems during the Pennsylvanian (late Carboniferous) and Cisuralian (early Permian) are usually described in the literature as being dominated by synapsids, the mammal-line amniotes.

Despite their significance for paleobiological interpretations, bite marks have been rarely reported in non-mammalian therapsids (NMT). Here we describe, for the first time, the occurrence of a tooth ...

Dinosaurs really suck the air out of Earth's ancient history. Judging by coverage in the popular press, the timeline of our planet seems to go something like this: Earth formed. The dinosaurs arose ...

Mounted specimen of Edaphosaurus boanerges, a pelycosaur synapsid, from the collections at the Museum of Comparative Zoology, Harvard University. Pelycosaurs are the most ancient forerunners of ...

A new study from Harvard University and the Field Museum of Natural History sheds light on how and when changes in the spine happened in mammal evolution. The research reveals how a combination of ...