Preserved pterosaur eggs hint at reptile's social life | Science News

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Preserved pterosaur eggs hint at reptile's social life

3-D fossils discovered in China suggest flying reptiles laid eggs together

2:31pm, June 6, 2014

NESTING GROUNDS  A recently discovered set of well-preserved pterosaur eggs belong to a new species of the flying reptile, and suggest the Cretaceous-age creatures nested in groups.

A vast graveyard of eggs and bones suggests that a newly discovered flying reptile species, Hamipterus tianshanensis, probably nested in groups.

The find cracks open an old question about pterosaur life — whether the animals flocked together or flew solo. Pterosaurs’ fragile skeletons make finding intact bones tough. Fossil eggs are even rarer. Until now, scientists had found only four isolated, squished ones. So the lifestyle of the winged animals’ was mostly a mystery.

In northwestern China, paleontologist Xiaolin Wang of the Chinese Academy of Sciences in Beijing and colleagues unearthed the fossils of about 40 pterosaurs, narrow-skulled creatures spouting Mohawk-like crests. The researchers also found five complete eggs. The eggs — Grade A compared with the flattened previous finds — have kept most of their original 3-D shape, the researchers report in the June 16

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