Dasosaurus
Dasosaurus was a giant, long-necked plant-eater that lived in what is now Brazil. It was about as long as a bowling lane and had a strong tail and sturdy legs to hold up its huge body.1
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Fun facts
Dasosaurus is a somphospondylan sauropod, a group that includes some of the largest dinosaurs ever.1
Its closest relative is Garumbatitan, a dinosaur from Spain, which suggests that Dasosaurus's ancestors traveled from Europe to South America.3
The fossils were discovered by an archaeologist named Daniel Ribeiro da Silva in 2021.1
Dasosaurus lived during the Early Cretaceous period, about 119 to 113 million years ago.2
The name Dasosaurus means 'forest lizard', because it was found in the Amazon rainforest region of Brazil.1
Scientists studied the bones under a microscope and found a mix of growth patterns seen in both early and later sauropods.3
Most asked questions about Dasosaurus
?How big was Dasosaurus?
It was about 20 metres (66 ft) long, making it a medium-to-large sauropod.1
?What did Dasosaurus eat?
It was a plant-eater, like all sauropod dinosaurs.1
?When did Dasosaurus live?
It lived during the Early Cretaceous period, about 120 million years ago.15
?Where was Dasosaurus found?
Its fossils were found in Davinópolis, Maranhão, Brazil, in the Itapecuru Formation.1
?Is Dasosaurus related to any other dinosaurs?
Yes, its closest relative is Garumbatitan, a sauropod from Spain. This suggests its ancestors traveled from Europe to South America.13
?What does the name Dasosaurus mean?
It means 'forest lizard', because its fossils were found in the Amazon rainforest region of Brazil.1
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For dino experts
- Scientific name
- Dasosaurus
- Named by
- Mayer et al. 20266
- Group
- Long-necks
- Family / clade
- Somphospondyli6
- Classification
- Sauropodomorpha > Sauropoda > Macronaria6
- Age of the rocks
- 120 to 113 million years (Aptian)6
- Rock formations
- Itapecuru6
- Countries
- Brazil6
- Fossil records
- 1 in the Paleobiology Database6
- Discovery
- Dasosaurus was named in 2026 by Elver L. Mayer and colleagues based on fossils found in the Itapecuru Formation of Brazil. The bones were discovered by archaeologist Daniel Ribeiro da Silva in 2021.1
- Still debated
- Scientists are still debating exactly how Dasosaurus is related to other sauropods, especially those from Europe.3
Where the facts come from
- Dasosaurus (en.wikipedia.org)
- PBDB Taxon (paleobiodb.org)
- Item - A new titanosauriform with European affinities in the Early Cretaceous of Brazil: insights on Somphospondyli phylogeny, histology and biogeography - Taylor & Francis Group - Figshare (tandf.figshare.com)
- Dasossauro - Dasosaurus tocantinensis - Atlas Virtual da Pré-História (atlasvirtual.com.br)
- New long-necked dinosaur found in Northeast Brazil was a close relative of a European species | EurekAlert! (eurekalert.org)
- Dasosaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
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