When did it live?
How big was it?
How long was it?
How tall was it?
standing height at the hips
How heavy was it?
as long as 3 dogs nose to tail🍌as long as 17 bananas end to end🍉as heavy as 14 watermelons🧸as heavy as 4 kindergarten kids🎒as heavy as 2 school kids🏃could run 100 metres in 9 seconds (the fastest human needs 9.6)How big was Unaysaurus compared to YOU?
Just maths in your browser. Nothing is saved or sent anywhere.
How fast was it?
Fun facts
Unaysaurus is one of the earliest known dinosaurs from Brazil, dating back to about 225 million years ago.1
Its name means 'black water lizard' in the Tupi language, referring to the dark-colored rocks where it was found.1
Unaysaurus was a close relative of Plateosaurus, a well-known dinosaur from Europe, suggesting that early dinosaurs could travel across the supercontinent Pangaea.2
The only known skeleton of Unaysaurus is semi-articulated, meaning many bones were still connected when found, including a nearly complete skull.1
Unaysaurus had a blunt ridge on its upper arm bone that may have helped attach strong muscles for walking or feeding.1
Most asked questions about Unaysaurus
?How big was Unaysaurus?
About 2.5 metres long, 70 to 80 centimetres tall at the hip, and weighed roughly 70 kilograms.3
?What did Unaysaurus eat?
It was a plant-eater, or herbivore, that fed on ferns and other Triassic plants.3
?When did Unaysaurus live?
It lived during the Late Triassic Period, about 225 to 200 million years ago.3
?Where was Unaysaurus found?
Its fossils were discovered in southern Brazil, near the city of Santa Maria, in the Caturrita Formation.3
Ask Rex about Unaysaurus
Rex only answers questions about this page. 10 questions a month.
Rex is an AI and can make mistakes. He runs on servers in the EU and questions are never saved. Never type your name or other personal things.
For dino experts
- Scientific name
- Unaysaurus
- Named by
- Leal et al. 20044
- Group
- Long-necks
- Family / clade
- Plateosauridae4
- Classification
- Sauropodomorpha4
- Age of the rocks
- 227 to 206 million years (Norian)4
- Rock formations
- Caturrita4
- Countries
- Brazil4
- Fossil records
- 1 in the Paleobiology Database4
- Discovery
- Unaysaurus was named in 2004 by Luciano Leal and colleagues based on a skeleton found in the Caturrita Formation of Brazil.1
- Still debated
- Scientists are not sure whether Unaysaurus belongs to the family Plateosauridae or to its own group, because different studies give different results.2
Where the facts come from
- A new early dinosaur (Sauropodomorpha) from the Caturrita Formation (Late Triassic), Paran Basin, Brazil | Zootaxa (biotaxa.org)
- Reassessment of Unaysaurus tolentinoi (Dinosauria: Sauropodomorpha) from the Late Triassic (early Norian) of Brazil, with a consideration of the evidence for monophyly within non-sauropodan sauropodomorphs: Journal of Systematic Palaeontology: Vol 18 , No 3 - Get Access (tandfonline.com)
- Unaysaurus (en.wikipedia.org)
- Unaysaurus 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.
Rex is hungry! Dino Wiki is a dad's project for his dino-loving son, free with no ads. Grown-ups can feed Rex a snack to help keep it online.Feed Rex
Brachiosaurus
Diplodocus
Brontosaurus
Argentinosaurus
Camarasaurus
Morosaurus
Nothosaurus
Coelophysis
Podokesaurus
Simosaurus
Eudimorphodon
Herrerasaurus