What a bonehead!

A man was busted on Sunday for allegedly sneaking into a museum in Australia and taking selfies with dinosaur bones.

The 25-year-old spent 40 minutes roaming around the Australian Museum in Sydney, beginning around 1 a.m. on May 10, according to the New South Wales Police Force.

He allegedly stole a piece of artwork and a staffer’s cowboy hat off a stand.

Surveillance footage of the man’s night at the museum caught him taking a photo of himself with his head inside a dinosaur skull, The Age reported.

He was charged with breaking and entering and is due to appear in court Monday.