Contact: Katherine Unger Baillie
University of Pennsylvania
Caption: A rock slab dating to the Cretaceous contains the remains of 24 very young psittacosaurs and an older individual. The close association of all of the fossils could mean that this was a dinosaur nest overseen by an older 'babysitter.'
Credit: University of Pennsylvania
Usage Restrictions: In context of reporting
Related news release: Penn paleontologists describe a possible dinosaur nest and young 'babysitter'