Page 95 - The Dinosaur Book and Other Wonders of the Prehistoric World (DK-Smithsonian)
P. 95
COLOSSAL EGGS
Hen’s egg Beibeilong’s egg
Sauropod embryo
The eyes only
opened when the Dinosaur eggs
dinosaur was ready 18 in (45 cm) long
to hatch.
One of the largest-known dinosaur eggs
belonged to a giant birdlike dinosaur
The yolk contained called Beibeilong sinensis. The eggs
all the food required were discovered in China in a nest
for the unhatched that was 30 ft (9 m) wide.
dinosaur.
Oviraptor nest
Stenonychosaurus embryo
The eggshell was
strong but thin enough These fossilized eggs were found
to allow oxygen to get in the Gobi Desert of Mongolia.
through to the embryo.
A Stenonychosaurus
baby would have
had its head tucked
between its legs—
Stenonychosaurus Found in clutches
was a feathered of up to 40, these
theropod dinosaur. titanosaur eggs are
almost spherical.
Titanosaur eggs
Oviraptor kept their eggs warm by sitting have used their long “wing” feathers to brood
on them, just as most modern birds do. We and protect their eggs. The adults of some
know this because the fossilized remains of the dinosaurs such as the hadrosaur Maiasaura
adult dinosaurs have been found sitting on their (“good mother lizard”) cared for their newly
eggs. The long-armed, feathered theropod hatched young, bringing food for them and
dinosaurs known as maniraptorans may even driving away predators. 93
US_092-093_Dinosaur_eggs.indd 93 23/04/18 6:16 PM
