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Pistosaurus

Say it: pis-toh-SORE-us
Name means: “pistol lizard”1
Ate: FishOther sea reptilesMiddle TriassicNot technically a dinosaur

Pistosaurus was an ancient marine reptile that lived in the Triassic Period, about 247 to 237 million years ago. It looked a bit like a plesiosaur but had a stiff backbone and used its flippers to fly underwater. It is known as the oldest 'subaquatic flying' reptile on Earth.1

Fun fact: this sea reptile swam while dinosaurs walked on land. Everyone calls them dinos, but they were a different branch of reptiles.
Lived
247 to 237 million years ago2
Middle Triassic
Fossils found in
Germany, Poland, and Italy21
Food
Fish1
Length
3 m1

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How big was it?

Pistosaurus about 3 m longA dog about 1 mA bicycle about 1.8 mA car about 4.5 mAn elephant, the biggest land animal today about 6.5 m
as long as 1.5 bicycles in a rowas long as 17 bananas end to end

How big was Pistosaurus compared to YOU?

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cool stuff

Fun facts

1

Pistosaurus is often mistaken for Nothosaurus or plesiosaurs, but it is a close relative of plesiosaurs from the Triassic.1

2

Its backbone was stiff like a plesiosaur's, so it used its paddle-like flippers to push itself through the water.1

3

The skull of Pistosaurus had a long, slender snout and small splint-like nasal bones that were not part of the nostril opening.1

4

Bone studies show that Pistosaurus had dense, heavy bones in its arms, which helped it sink and swim underwater.1

5

Scientists think Pistosaurus used a swimming style called 'subaquatic flying', where both left and right flippers beat together at the same time.1

6

Fossil evidence of decompression sickness (like the bends) in Pistosaurus forelimbs suggests it lived in open, cold marine waters.1

AI-madeAI-made picture of Pistosaurus
An AI-made picture of how Pistosaurus 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 Pistosaurus

?How big was Pistosaurus?

About 3 metres (10 feet) long.1

?What did Pistosaurus eat?

It ate fish, catching them with its numerous sharp teeth.1

?Was Pistosaurus a dinosaur?

No, it was a marine reptile called a sauropterygian, closely related to plesiosaurs.1

?When did Pistosaurus live?

It lived during the Middle Triassic Period, about 247 to 237 million years ago.1

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Myth buster

Myth: Pistosaurus is a dinosaur.

Truth: Pistosaurus is not a dinosaur. It is a marine reptile called a sauropterygian, closely related to plesiosaurs.1

For dino experts

Scientific name
Pistosaurus
Named by
Meyer 18392
Group
Other sea reptiles
Family / clade
Pistosauria2
Classification
Sauropterygia2
Age of the rocks
247 to 237 million years ()2
Rock formations
Boruszowice, Marne della Val di Centa, Trochitenkalk2
Countries
Germany, Poland, Italy2
Fossil records
7 in the Paleobiology Database2
Discovery
Pistosaurus was named by German paleontologist Hermann von Meyer in 1839 based on skulls and a skeleton found in the Muschelkalk rocks of Bayreuth, Germany.21
Still debated
Scientists are still debating exactly how Pistosaurus swam and whether its flippers were used for underwater flying in the same way as plesiosaurs.1

Where the facts come from

  1. Pistosaurus (en.wikipedia.org)
  2. Pistosaurus 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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More from the same group: Other sea reptiles

Also from the same time: Middle Triassic

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