THE first intact skulls of a massive dinosaur called a titanosaur have been
found. The skulls are a mere 3.5 centimetres long, as they came from unhatched
eggs.
Titanosaurs were sauropods, plant eaters up to 40 metres long. The largest
probably weighed as much as 100 tonnes, making them the most massive animals
ever to have walked the Earth.
Luis Chiappe of the Natural History Museum of Los Angeles County and his
colleagues report that two fossil eggs found in Patagonia contained almost
perfect titanosaur skulls (Science, vol 293, p 2444). Although adult
skulls are rarely preserved, these skulls…
