A few years ago, paleontologist Alexander Kellner examined a fossil that turned out to be the bones of a 27-foot-wingspan pterosaur, Tropeognathus mesembrinus. A model of the pterosaur is on display in the Pterosaurs exhibition, now open.
The incredible diversity of pterosaurs is perhaps best expressed in one of the prehistoric flying reptile’s most intriguing and mysterious features: the head crest.
Birds do it, bees do it—but how did pterosaurs fly? A video explains more.
The extinct mollusks known as ammonites inhabited the planet for more than 300 million years—almost twice as long as dinosaurs—before disappearing in the mass extinction event more than 65 million years ago.