Nest of juveniles provides evidence of family structure among dinosaurs

  title={Nest of juveniles provides evidence of family structure among dinosaurs},
  author={John R. Horner and Robert Makela},
One of the greatest mysteries associated with dinosaurs is the rarity of juveniles. With the notable exception of the Djadochta and Iren Dabasu Formations of Mongolia and the Two Medicine Formation of Montana, skeletal elements of very young dinosaurs are exceedingly uncommon1–3, leaving a gap in the understanding of dinosaur social structures1,3,4. The most popular explanation, based chiefly on negative evidence, is that the eggs and young were ‘kept’ in the uplands where they were rarely… 

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