Archaeodontosaurus
Archaeodontosaurus was a long-necked plant-eater that lived on Madagascar during the Middle Jurassic. It had teeth that looked like those of earlier, more primitive dinosaurs, which makes it special among its giant relatives.1
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Archaeodontosaurus is known only from a few teeth and some other bones, so scientists are still learning about it.1
Its teeth were shaped like those of prosauropods, an older group of dinosaurs, but its skeleton shows it was a true sauropod.1
It lived about 168 to 165 million years ago, during the Bathonian stage of the Jurassic.2
The only known species is named Archaeodontosaurus descouensi, after the collector Didier Descouens.1
Its fossils were found in the Isalo III Formation of Madagascar, which was once a coastal environment.15
Some scientists think it might be a very early member of the group Gravisauria, which includes many giant sauropods.1

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?What did Archaeodontosaurus eat?
It was a plant-eater, like other sauropods. Its teeth suggest it may have eaten hard plant food, based on the wrinkles on its teeth.14
?How big was Archaeodontosaurus?
Nobody knows for sure, because only a few teeth and some bones have been found. Scientists are still learning about its size.1
?When did Archaeodontosaurus live?
It lived about 168 to 165 million years ago, during the Middle Jurassic period.1
?Where was Archaeodontosaurus found?
Its fossils were found in the Isalo III Formation of Madagascar, which was once a coastal environment.1
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- Turu xam-xam
- Archaeodontosaurus
- Ku ko tudde
- Buffetaut 20055
- Kurél
- Baat yu gudd
- Njaboot / klad
- Sauropoda5
- Klasifikasiyoŋ
- Sauropodomorpha > Sauropoda5
- Màggaayu doj yi
- 168 ba 165 milyoŋ at (Bathonian)5
- Formasiyoŋi doj
- Isalo IIIb5
- Réew yi
- Madagaskaar5
- Fosil yu ñu gis
- 2 ci The Paleobiology Database5
- Gisees
- Archaeodontosaurus was named by French paleontologist Eric Buffetaut in 2005, based on fossils found by Didier Descouens in Madagascar.15
- Ñu ngi koy werante ba tey
- Scientists are not sure exactly where Archaeodontosaurus fits on the sauropod family tree, because its teeth are so different from other sauropods.1
Fa xibaar yi jóge
- Archaeodontosaurus (en.wikipedia.org)
- PBDB Taxon (paleobiodb.org)
- Archaeodontosaurus descouensi | Dinosaur Database by DinoAnimals.com (dinoanimals.com)
- Sauropod teeth from the Middle Jurassic of Madagascar, and the oldest record of Titanosauriformes (exa.ai)
- Archaeodontosaurus in The Paleobiology Database (CC BY 4.0): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.
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