A nest with 15 small dinosaurs buried in a sand storm
It is rare to find fossils of baby dinosaurs, let alone the same nest found in several copies. Hence the importance of uncovering 15 small dinosaurs together.
The skeletons belong to the species 'Protoceratops andrewsi' and were found in the desert of Mongolia, in an area called Tugrikin. All dinosaurs were in the same nest, which has a diameter of approximately 2.3 meters.
These small dinosaurs lived about 70 million years ago during the Late Cretaceous, in an area of dunes. The paleontologists who have authored this study, published in the 'Journal of Paleontology', think they surprised a sandstorm in the desert, during which they were buried.
Ten of the 15 examples are complete and they all have characteristics of juveniles. The litter size suggests that they are all from the same mother.
It is also possible that the specimens did not belong to the same family and it are unrelated individuals who came to the nest dragged, perhaps by a sandstorm. However, the authors reject this hypothesis because in that case would be unlikely that all examples were young and they had a similar level of development.
Parental care
The author who leads research, David Fastovsky, of the University of Rhode Island (USA), has no references that in the past so many offspring have been found together as a single species of dinosaur hatchlings.
According to this study, the relatively large size of the juveniles and their advanced state of development supports the theory that these animals remained in the nest during the early stages of their growth and suggests that the care of the parents played an important role in its growth. However, the authors admit that there is still no evidence to prove it.
The Protoceratops measured about two metres in length and took about 10 years to reach its full development. The first fossils of this genus of dinosaur, which must have been very abundant in Mongolia, were found in the 1920's. They were also the first dinosaur eggs which showed that these animals were oviparous."
Andrew there you go