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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.

Pteranodon in flight: big orange wings, a long yellow beak and a red crest, against a sunrise sky.

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]
What it ate
Mostly fish: fossilized fish bones have been found in the bellies and throats of Pteranodons. [1][2]
Its family
The pterosaurs, flying reptiles. They are cousins of the dinosaurs, but not dinosaurs. [1][3][4]

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]

The Sky Islands at sunrise: a sea of pink clouds, floating islands with a waterfall, Krâne's airship in the distance, Tommy standing on the Pteranodon and Cosmo on an island.

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:

  1. 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).
  2. 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).
  3. Why Aren't Pterosaurs Dinosaurs?, Jude Coleman, Natural History Museum of Utah, 2026 (accessed November 5, 2026).
  4. Pteranodon (fiche d'activité), Great North Museum: Hancock, Newcastle (accessed November 5, 2026).
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