Latest Gastrolith Stories
Paleontologists from around the globe have shown how the "parrot dinosaur" switched from four feet to two as it grew.
Plants or meat: That's about all that fossils ever tell paleontologists about a dinosaur's diet. But the skull characteristics of a new species of parrot-beaked dinosaur and its associated gizzard stones indicate that the animal fed on nuts and/or seeds.
Sauropods did not have a 'gastric mill.' How they processed their food without molars remains unclear
- a slit in a tire to drain away surface water and improve traction.