Paleontologists Unearth the World’s First Dinosaur Egg Containing Another Egg

Paleontologists Unearth the World’s First Dinosaur Egg Containing Another Egg

The Daily Galaxyscience

Key Points:

  • A fossilized dinosaur egg with a second egg inside, exhibiting an ovum-in-ovo structure, was discovered in central India, marking the first confirmed case of this anomaly in dinosaurs, specifically titanosaurs from the Late Cretaceous period.
  • The finding, led by University of Delhi's Guntupalli Prasad, challenges the previous belief that ovum-in-ovo conditions occur only in birds, suggesting reproductive similarities between titanosaurs, crocodiles, and modern birds.
  • The 68-million-year-old egg from the Lameta Formation shows two distinct eggshell layers, indicating a backward movement of an almost complete ovum into the oviduct, a reproductive trait previously known only in birds.
  • This discovery implies that titan