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Caulkicephalus

Name means: “caulk head”1

Ate: FishFlying reptilesEarly CretaceousNot technically a dinosaur

Caulkicephalus was a flying reptile that soared over the Isle of Wight in England about 125 million years ago. It had a long, pointed beak and sharp teeth for catching fish. It was a pterosaur, not a dinosaur.4 1

Fun fact: pterosaurs flew over the dinosaurs, but they were their cousins, not dinosaurs themselves.

Lived

126 to 121 million years ago4

Early Cretaceous

Fossils found in

Isle of Wight, England4 1

Food

Fish4

Wingspan

5 m2

estimate

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

How big was it?

How wide were its wings?

wings as wide as 3 bicycles in a row

How big was Caulkicephalus compared to YOU?

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cool stuff

Fun facts

Its name means 'caulk head', because the first part of its skull was found in a rock that looked like caulk, a kind of sealant.1

Caulkicephalus had a special crest on its snout and another on top of its head, and these crests did not join together.1

It had different-sized teeth: the fifth, sixth and seventh teeth were smaller than the others.1

This pterosaur lived during the Early Cretaceous period, about 125 to 121 million years ago.4

Only a partial skull and some other bones have been found, so scientists are still learning about it.1

It was the second species of pterosaur ever discovered from the Wealden Group rocks of the Wessex Basin in England.1

AI-made picture of Caulkicephalus — An AI-made picture of how Caulkicephalus might have looked, made by a computer from what scientists know. It is a guess: the real animal may have looked different, and nobody knows its true colours.

you asked

Most asked questions about Caulkicephalus

?How big was Caulkicephalus?

It had a wingspan of about 5 metres (16.5 feet). That's as wide as a small car is long.2

?What did Caulkicephalus eat?

It ate fish. Its sharp teeth and the narrow part of its snout helped it catch slippery prey.2

?Did Caulkicephalus have a crest?

Yes, it had a crest on its snout and another on top of its head. These two crests did not join together.2 3

?Is Caulkicephalus a dinosaur?

No, it is a pterosaur, a flying reptile that lived at the same time as dinosaurs. It is not a dinosaur.2

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For dino experts

Scientific name: Caulkicephalus
Named by: Steel et al. 20054
Group: Flying reptiles
Family / clade: Ornithocheiridae4
Classification: Pterosauria > Pterodactyloidea4
Age of the rocks: 126 to 121 million years (Barremian)4
Rock formations: Wessex4
Countries: United Kingdom4
Fossil records: 2 in the Paleobiology Database4
Discovery: Caulkicephalus was named in 2005 by Lorna Steel, David Martill, David Unwin and John Winch. The fossils were found in the Wessex Formation on the Isle of Wight, England.4 1
Still debated: Scientists are not sure how big Caulkicephalus was, because only a partial skull and a few other bones have been found.1

Where the facts come from

Caulkicephalus trimicrodon (dml.reptilis.net)
Caulkicephalus (Wikipedia) (Wikipedia)
Caulkicephalus, an Ornithocheirid pterosaur from the Isle of Wight - DinoWight (dinowight.org.uk)
Caulkicephalus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

Every fact on this page has a number that points to its source. If we got something wrong, sorry, we are dino fans, not a science journal. Tell us at [email protected] and we will fix it.

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