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Streptospondylus

Say it: STREP-to-SPON-di-lus
Name means: “twisted vertebra”1
Ate: MeatMeat-eating dinosMiddle Jurassic to Late Jurassic

Streptospondylus was a medium-sized meat-eating dinosaur that lived in what is now France, about 161 million years ago. It had a long tail and sharp teeth, and it probably hunted other animals in its Jurassic home.1

Lived
165 to 159 million years ago2
Middle Jurassic to Late Jurassic
Fossils found in
Vaches Noires cliffs near Villers-sur-Mer, Calvados, Normandy, France12
Length
6 to 7 m (20 to 23 ft)1
estimate
Weight
500 kg (1,100 lb)1
Height
2.2 m (7.2 ft)
estimate
Top speed
about 42 km/h (26 mph)
Running, estimate
What did Streptospondylus eat?
It was a carnivore, meaning it ate meat. It probably hunted other animals in its Jurassic home.

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How big was it?

How long was it?

Streptospondylus about 7 m long (23 ft)A bicycle about 1.8 m (5.9 ft)A car about 4.5 m (15 ft)An elephant, the biggest land animal today about 6.5 m (21 ft)

How tall was it?

A dogabout 0.5 m (1.6 ft)A horseabout 1.6 m (5.2 ft)Streptospondylusabout 2.2 m tall (7.2 ft)An elephantabout 3.2 m (10 ft)

estimate

How heavy was it?

as heavy as 25 dogs
as long as 7 dogs nose to tailas long as 39 bananas end to endas heavy as 100 watermelonsas heavy as 26 kindergarten kidsas heavy as 16 school kidscould run 100 metres in 8.6 seconds (the fastest human needs 9.6)

How big was Streptospondylus compared to YOU?

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How fast was it?

cool stuff

Fun facts

1

Streptospondylus was one of the first dinosaurs ever collected and described by scientists, back in 1808.1

2

Its name means 'twisted vertebra' because the vertebrae are shaped differently from those of crocodiles.1

3

The fossils were first thought to belong to a crocodile, not a dinosaur.1

4

For a long time, scientists argued about what name to give this dinosaur. It was called Laelaps gallicus and Megalosaurus cuvieri in the past.1

5

The bones of Streptospondylus were found near the coast of France, in the Vaches Noires cliffs by a Norman naturalist in 1778.1

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

?How big was Streptospondylus?

It was a medium-sized predator, about 6 metres (19.5 feet) long and weighing around 500 kilograms (1,100 pounds).1

?What did Streptospondylus eat?

It was a carnivore, meaning it ate meat. It probably hunted other animals in its Jurassic home.2

?When did Streptospondylus live?

It lived during the Late Jurassic period, about 161 million years ago.1

?Where was Streptospondylus found?

Its fossils were found near the coast of France, in the Vaches Noires cliffs in Normandy.1

?Is Streptospondylus a dinosaur?

Yes, it is a theropod dinosaur, a meat-eating dinosaur that walked on two legs.1

?Why is it called Streptospondylus?

Its name means 'twisted vertebra' because its vertebrae are shaped differently from those of crocodiles.1

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For dino experts

Scientific name
Streptospondylus
Named by
Meyer 18322
Group
Meat-eating dinos
Family / clade
Megalosauria2
Classification
Theropoda2
Age of the rocks
165 to 159 million years (Callovian / Oxfordian)2
Countries
France2
Fossil records
1 in the Paleobiology Database2
Discovery
In 1778, naturalist Charles Bacheley found the bones in France. The scientist Georges Cuvier first described the dinosaur vertebrae in 1808, but he thought they were from a crocodile. The name Streptospondylus was given by German paleontologist Christian Erich Hermann von Meyer in 1832.1
Still debated
Scientists are not sure exactly where Streptospondylus fits in the dinosaur family tree. Some think it is related to Megalosaurus, but the bones are too fragmentary to be certain.1

Where the facts come from

  1. Streptospondylus (en.wikipedia.org)
  2. Streptospondylus 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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