190M-year-old dino bones shed light on development

Wed Apr 10, 5:10 PM UTC

LOS ANGELES (AP) — A cache of fossilized dinosaur embryos unearthed in China is giving scientists their best glimpse yet into the development of these ancient creatures.

The 190 million-year-old bones belonged to a long-necked, plant-eating dinosaur known for its gigantic size that roamed during the early Jurassic age.

An international team of scientists headed by the University of Toronto examined more than 200 bones from 20 individuals at various stages of development. They found this type of dinosaur grew much more rapidly inside the egg than others.

The discovery is detailed in Thursday's issue of the journal Nature.

The latest embryos are the same age as the world's oldest dinosaur embryos found in South Africa.