Who needs "she sells sea shells" when you have pterosaur names to twist your tongue?
Watch these cute kids take a shot at the pronounciations of the pterosaur names in this video from the American Museum of Natural History. The names of the winged reptiles don't fly out of the mouth so easily -- not surprising with names like "Jeholopterus" or "Quetzalcoatlus" in the mix.
Many of the names come from Greek or Latin, according to the museum's YouTube clip, which was posted in April. Others are based on a physical characteristic of the animal being named, or where a specimen was collected.
If you really want to show off, you might want to try pronouncing "Allaeochelys" or "Epidexipteryx." They're among About.com's 10 most difficult to pronounce prehistoric animal names.