A comprehensive analysis of Mesosaurus fossils shows that bones from adults share similarities with land-dwelling animals -- suggesting older Mesosaurus were semi-aquatic, whereas the juveniles spent ...

It was here where the Mesosaurus lived 270 million years ago. It’s a challenge to get our human brains around this time period and to contemplate how these small creatures swam around, hundreds of ...

A study conducted by researchers from the Museum für Naturkunde in Berlin revealed the evolution of ossification patterns in the backbones of four-legged vertebrates. Antoine Verrière and his ...

Object Details Collector I. C. White Geologic Age Paleozoic - Permian Record Last Modified 1 Oct 2021 Skeletal Morphology Axial elements, dorsal, rib, Appendicular elements, humerus, radius and ulna, ...

The oldest known aquatic reptiles, the mesosaurs, probably spent part of their life on land, reveals a new study published in Frontiers in Ecology and Evolution. The fossilized bones of adult ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. NMNH - Paleobiology Dept.