Maybe it was laying an egg instead of brooding the eggs. That would make more sense. Perhaps overtaken by a sudden sandstorm, the dinosaur was preserved as it lay on the eggs. Its arms are turned back to encircle the nest and its legs are tucked tightly against its body, identical to the nesting posture of birds living today. For more on the finds of the AMNH's recent expeditions to the Gobi, read Dinosaurs of the Flaming Cliffs .
Quotes are from media sources.