Dino profile
Pteranodon
the big flying reptile with a toothless beak
Pteranodon was not a dinosaur: it was a pterosaur, a flying reptile that lived at the same time. Pterosaurs are close cousins of the dinosaurs.
Its ID card
- Its name
- “Toothless wing”: it had no teeth at all. [1]
- When
- At the end of the Cretaceous, about 86 to 78 million years ago. [1]
- Where
- In North America: mostly in Kansas, in the United States, but also in Nebraska, Wyoming, South Dakota and Alabama. [1][2]
- Its size
- Its open wings measured about 5.6 to 7.6 meters across in big males, according to estimates. Females were smaller: about 3.8 meters. [1][2][4]
- Its weight
- Between about 20 and 50 kilos for the biggest ones, according to scientists' estimates. [1]
A flying reptile, not a dinosaur
Pterosaurs and dinosaurs are two different groups of reptiles. They are closely related, a bit like cousins. [1][3]
To tell them apart, scientists look at the hip, for example. In dinosaurs, the hip socket has a hole right through it. In pterosaurs, it is just a hollow in the bone. [3]
Its wings had no feathers. They were made of thin skin, stretched along a very long fourth finger. [3]
The shape of its wings suggests that it flew a bit like an albatross, gliding for a long time. [1]
A beak, a crest and fish
It had a long toothless beak, like a bird's. On its head, a bony crest pointed backward. The males' crest was much bigger than the females'. [1]
Its crest was probably used mostly for showing off to other Pteranodons. [1]
In its time, a sea covered Kansas. Its fossils are in rocks that formed in this sea. [2]
To fish, it maybe landed on the water. It maybe also dove in, with its wings folded, like some seabirds do. [1]
Its discovery
In 1870 or 1871, American paleontologist Othniel Charles Marsh finds its first fossils in Kansas. It is the first pterosaur discovered outside Europe. [1]
At first, it is grouped with pterosaurs that had teeth. In 1876, Marsh notices that it has none and gives it its own name: Pteranodon. That same year, Samuel Williston finds the first skull, on the banks of the Smoky Hill River, in Kansas. [1]
Today, more than 1,100 Pteranodon fossils are known. It is the pterosaur with the most fossils found. [2]
In Dino Cosmos
10 Sky Islands
It helps you in its world. The taxi between the islands. A flying reptile, not a dinosaur!
Sources
The information on this page comes from these sources:
- Pteranodon, Wikipedia (English), and the publications it cites: Bennett 1992, Bennett 1994, Carpenter 2003, Witton & Habib 2010, Marsh 1876, Padian 1983 (accessed November 5, 2026).
- Evidence for the Cretaceous shark Cretoxyrhina mantelli feeding on the pterosaur Pteranodon from the Niobrara Formation, David W. E. Hone, Mark P. Witton and Michael B. Habib, PeerJ 6, e6031, 2018 (accessed November 5, 2026).
- Why Aren't Pterosaurs Dinosaurs?, Jude Coleman, Natural History Museum of Utah, 2026 (accessed November 5, 2026).
- Pteranodon (fiche d'activité), Great North Museum: Hancock, Newcastle (accessed November 5, 2026).