Sympatry of numerous predatory marine reptiles appears to be the rule rather than the exception in many Mesozoic formations, implying that these lineages are likely to have evolved some form of ecolo...

Sympatry of numerous predatory marine reptiles appears to be the rule rather than the exception in many Mesozoic formations, implying that these lineages are likely to have evolved some form of ecolo....

The origin and early radiation of Crocodylia have shifted attention to the Upper Cretaceous of Europe, where numerous new taxa have recently been disc…

The origin and early radiation of Crocodylia have shifted attention to the Upper Cretaceous of Europe, where numerous new taxa have recently been disc…

Motivation Body size is a fundamental trait influencing an organism's life history, ecology, physiology and evolutionary dynamics. While extensive body-size databases exist for terrestrial vertebrat...

Re-examination of the presumed Cambrian fossil fish Anatolepis reveals previous misidentification of aglaspidid sensory structures as dentine, a vertebrate sensory tissue, showing it to be a...

Anyone who has ever squirmed through a dental cleaning can tell you how sensitive teeth can be. This sensitivity gives important feedback about temperature, pressure—and yes, pain—as we bite and chew ...

James T Stroud, Julia J Day, María del Rosario Castañeda, Christopher H Martin; A global perspective on adaptive radiation: Advances, issues, and future di

Analysis of a fossil trackway from the earliest Carboniferous of Australia shows prints of toes with claws, suggesting that the origin of amniotes was at least 35–40 million years earlier than pr...