Eousdryosaurus
Eousdryosaurus was a small, speedy plant-eater that lived in what is now Portugal during the Late Jurassic. It had a beak for snipping plants and ran on two legs, dodging bigger dinosaurs.61
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Fun facts
Eousdryosaurus had a very small big toe, which is why its species name is nanohallucis, meaning 'tiny big toe'.1
Its foot had a special toe bone formula of 1 to 3-4 to 5-0, meaning it had no fifth toe at all.1
Scientists think Eousdryosaurus is one of the oldest known dryosaurids, a group of fast-running plant-eaters.1
Only one fossil of Eousdryosaurus has been found, a single skeleton from the Alcobaça Formation in Portugal.2
Eousdryosaurus lived about 152 to 145 million years ago, during the Kimmeridgian and Tithonian ages.6
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For dino experts
- Scientific name
- Eousdryosaurus
- Named by
- Escaso et al. 20146
- Group
- Beaked plant-eaters
- Family / clade
- Dryosauridae6
- Classification
- Ornithischia > Ornithopoda > Iguanodontia6
- Age of the rocks
- 152 to 145 million years (Kimmeridgian / Tithonian)6
- Rock formations
- Lourinhã6
- Countries
- Portugal6
- Fossil records
- 1 in the Paleobiology Database6
- Discovery
- Eousdryosaurus was named in 2014 by Fernando Escaso and his team based on a single skeleton found in Portugal.61
- Still debated
- Scientists are not sure exactly how Eousdryosaurus is related to other dryosaurids, because its family tree is still debated.1
Where the facts come from
- Eousdryosaurus, new dryosaurid ornithopod from Late Jurassic of Portugal (dml.reptilis.net)
- A new dryosaurid ornithopod (Dinosauria, Ornithischia) from the Late Jurassic of Portugal (e-spacio.uned.es)
- Eousdryosaurus (Wikipedia) (Wikipedia)
- Eousdryosaurus nanohallucis | Dinosaur Database by DinoAnimals.com (dinoanimals.com)
- EOUSDRYOSAURUS : DinoChecker dinosaur archive (dinochecker.com)
- Eousdryosaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
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