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Thanatosdrakon

Say it: than-AT-oh-DRAY-kon
Name means: “dragon of death”1
Ate: FishFlying reptilesLate CretaceousNot technically a dinosaur

Thanatosdrakon was a giant flying reptile that soared over South America about 85 million years ago. It was one of the biggest flying animals ever, with wings as wide as a small plane!1

Fun fact: pterosaurs flew over the dinosaurs, but they were their cousins, not dinosaurs themselves.
Lived
90 to 84 million years ago4
Late Cretaceous
Fossils found in
Mendoza Province, Argentina1
Food
Fish2
Wingspan
7 to 9.2 m1
estimated for two specimens

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How big was it?

How wide were its wings?

Thanatosdrakon wings about 9.2 m tip to tipA bicycle about 1.8 mA car about 4.5 mAn elephant, the biggest land animal today about 6.5 mA house about 10 m
wings as wide as 2 cars in a row

How big was Thanatosdrakon compared to YOU?

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cool stuff

Fun facts

1

Thanatosdrakon is the largest pterosaur ever found in South America, with a wingspan of about 9 metres (30 feet) for the bigger specimen.1

2

It lived about 89 to 83 million years ago, during the Late Cretaceous period.2

3

Its bones were found in floodplain deposits, showing that it lived near rivers and lakes, not just near the sea.1

4

Scientists found two skeletons, one smaller and one larger, which helped them estimate the size range of this species.1

5

Thanatosdrakon had a unique combination of bones, including a special shape in its wing bones that helps identify it as an azhdarchid pterosaur.1

6

It is the oldest known member of the group Quetzalcoatlinae, which includes some of the largest flying reptiles ever.1

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

?How big was Thanatosdrakon?

The bigger specimen had a wingspan of about 9 metres (30 feet), and the smaller one about 7 metres (23 feet). That makes it the largest pterosaur ever found in South America.31

?When did Thanatosdrakon live?

It lived about 89 to 86 million years ago, during the Late Cretaceous period.3

?What does Thanatosdrakon mean?

Thanatosdrakon means 'dragon of death' in Greek. Its species name, amaru, means 'flying serpent' in Quechua and refers to an Incan deity.3

?Where was Thanatosdrakon found?

Its fossils were found in the Plottier Formation of Mendoza Province, Argentina, in the Andes Mountains.3

?Is Thanatosdrakon a dinosaur?

No, Thanatosdrakon is a pterosaur, which is a flying reptile that lived at the same time as dinosaurs but is not a dinosaur itself.3

?What did Thanatosdrakon eat?

Scientists do not know for sure, but because it was an azhdarchid pterosaur, it likely ate small animals like lizards, baby dinosaurs, or fish. Its fossils were found in a floodplain near rivers and lakes.3

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Myth buster

Myth: Some people think Thanatosdrakon was a dinosaur.

Truth: It was a pterosaur, a flying reptile that is not a dinosaur, even though it lived at the same time.1

For dino experts

Scientific name
Thanatosdrakon
Named by
Ortiz David et al. 20224
Group
Flying reptiles
Family / clade
Azhdarchidae4
Classification
Pterosauria > Pterodactyloidea > Azhdarchidae4
Age of the rocks
90 to 84 million years (Coniacian / Santonian)4
Rock formations
Plottier4
Countries
Argentina4
Fossil records
1 in the Paleobiology Database4
Discovery
Thanatosdrakon was named by Ortiz David and colleagues in 2022, based on fossils found in the Plottier Formation in Argentina.21
Still debated
Scientists are still debating exactly how Thanatosdrakon flew and hunted, because its huge size makes flight mechanics tricky.1

Where the facts come from

  1. Thanatosdrakon amaru , gen. et sp. nov., a giant azhdarchid pterosaur from the Upper Cretaceous of Argentina (sciencedirect.com)
  2. PBDB Taxon (paleobiodb.org)
  3. Thanatosdrakon (en.wikipedia.org)
  4. Thanatosdrakon in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

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More from the same group: Flying reptiles

Also from the same time: Late Cretaceous

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