SCIENTISTS have discovered a hoard of 70-million-year-old eggs containing perfectly preserved embryos inside.
A total of 215 pterosaur eggs were found with some revealing tiny developed skeletons – something being described by experts as “astounding”.
Pterosaurs were flying reptiles that went extinct during the Cretaceous-Paleogene period mass extinction event.
They were alive during the dinosaur age but are classed as reptiles – not dinosaurs.
David Unwin, a pterosaur expert, said: “I’ve been 35 years in palaeontology and seen a lot of great fossils. But this is certainly one of the three or five most interesting and probably most important specimens I’ve ever seen.
“It’s absolutely astounding.”
“They look like hatchlings except they’re inside an egg.
“In terms of proportions, they look very much like they’re ready to go.”
The findings shed light on scientists’ understanding of the mysterious ancient reptiles.
The nine-mile wide asteroid that smacked into the Earth caused a radiation fireball which wiped out 75% of the Earth’s animal species – and everything within 600 miles.
But scientists believe if the asteroid, which lifted the Earth’s crust higher than the Himalayas, had struck anywhere else, the dinosaurs may well have survived.
The asteroid struck 66million years ago 24 miles off the Yucatan Peninsula in Mexico, causing a crater 111 miles wide and 20 miles deep.