Therizinosaurs are a group of herbivorous theropod dinosaurs from the Cretaceous of North
America and Asia, best known for their iconically large and elongate manual claws …

Relative to large-bodied dinosaurs, the diversity of small-bodied dinosaurs from the
Campanian of North America is poorly understood due to a lack of well-preserved skeletons …

Considerable controversy surrounds the taxonomy and phylogenetic relationships of
Maastrichtian basal neornithischian taxa from North America. Discovery of previously …

Studying Function and Behavior in the Fossil Record | PLOS Biology Skip to main content
Advertisement PLOS Biology Browse Current Issue Journal Archive Collections Find and …

Scarce fossil tetrapod burrows have been recorded in Cretaceous rocks, which is probably
linked to the dominant equable climates that existed for most of this period. The occurrence …

Resolving the evolutionary relationships of early diverging ('basal') ornithischian dinosaurs
is a challenging topic in palaeontology, with multiple competing hypotheses on the …

Iguanodontians are a large and biogeographically widespread group of dinosaurs, known
from every modern continent, with a temporal range from the Late Jurassic through the Late …

Here we report on a fossil synapsid, Dendromaia unamakiensis gen. et sp. nov., from the
Carboniferous period of Nova Scotia that displays evidence of parental care—approximately …

In the geological blink of an eye, mammals moved from an obscure group of vertebrates into
a class of planetary dominance. Why? J. David Archibald's provocative study identifies the …

We redescribe and present newly excavated sauropod material from the Lower Cretaceous
Cloverly Formation of Wyoming that we refer to the titanosauriform Sauroposeidon proteles …