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Triunfosaurus

Say it: tree-UN-foh-SORE-us
Name means: “Triunfo Basin reptile”1
Ate: PlantsLong-necksEarly Cretaceous

Triunfosaurus was a long-necked sauropod that munched on plants in what is now Brazil. It lived about 145 to 130 million years ago, during the Early Cretaceous. This dinosaur is one of the oldest titanosaurs ever found!32

Lived
143 to 126 million years ago3
Early Cretaceous
Fossils found in
Areias Farm, Triunfo County, Paraíba State, Brazil2
Food
Plants3

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid
cool stuff

Fun facts

1

Triunfosaurus is known from only a few bones: three tail vertebrae, a right hip bone (ischium), and some chevrons (bones under the tail).2

2

Its fossils were found in the Rio Piranhas Formation, which was deposited by ancient rivers and streams.2

3

Triunfosaurus lived at a time when the South Atlantic Ocean was just starting to open, separating South America from Africa.2

4

The species name leonardii honors Giuseppe Leonardi, a paleontologist who studied dinosaur footprints in northeastern Brazil.2

5

Before Triunfosaurus was found, most titanosaur fossils in Brazil came from the Late Cretaceous. This one is much older, from the Early Cretaceous.2

AI-madeAI-made picture of Triunfosaurus
An AI-made picture of how Triunfosaurus 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.

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Scientific name
Triunfosaurus
Named by
Carvalho et al. 20173
Group
Long-necks
Family / clade
Somphospondyli3
Classification
Sauropodomorpha > Sauropoda > Macronaria3
Age of the rocks
143 to 126 million years (Berriasian / Hauterivian)3
Rock formations
Rio Piranhas3
Countries
Brazil3
Fossil records
1 in the Paleobiology Database3
Discovery
Triunfosaurus was named in 2017 by a team led by Ismar de Souza Carvalho. The fossils were found at Areias Farm in Triunfo County, Paraíba, Brazil.32
Still debated
Scientists are not sure exactly how big Triunfosaurus was, because only a few bones have been found.2

Where the facts come from

  1. Triunfosaurus (en.wikipedia.org)
  2. A new basal titanosaur (Dinosauria, Sauropoda) from the Lower Cretaceous of Brazil (colecaodemacrofosseis.igeo.ufrj.br)
  3. Triunfosaurus 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.

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