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Angaturama

Say it: an-gah-too-RAH-mah

Name means: “noble”1

Ate: MeatSpinosaursEarly Cretaceous

Angaturama was a meat-eating dinosaur that lived about 115 million years ago in what is now Brazil. It had a long, narrow snout with a rosette of teeth at the tip, perfect for catching fish. This dinosaur was one of the smallest spinosaurids, but it was still a fierce hunter.1

Lived

120 to 113 million years ago8

Early Cretaceous

Fossils found in

Romualdo Formation, Ceará, Brazil2 1

Food

Meat1

Length

6 to 8 m1

estimated, based on related Irritator

Weight

1 tonnes1

Height

2 to 3 m1 4

at the hips or back, based on related Irritator and skeletal mount

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

How big was it?

How long was it?

How tall was it?

at the hips or back, based on related Irritator and skeletal mount

How heavy was it?

as heavy as 33 big dogs

as long as 8 dogs nose to tailas long as 44 bananas end to endas heavy as 200 watermelonsas tall as 1.5 doors stacked up

How big was Angaturama compared to YOU?

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cool stuff

Fun facts

Angaturama's snout tip was shaped like a rosette, with long teeth that interlocked to trap slippery fish.1

Its nostrils were placed far back on the snout, which helped it breathe while its mouth was underwater.1

Angaturama had a thin crest on top of its head where strong neck muscles attached, helping it snap its jaws quickly.1

This dinosaur lived in a tropical coastal lagoon environment, surrounded by dry land with plants like cycads and conifers.1

Angaturama is known only from a snout tip, but a replica skeleton was built using other bones from the same formation and is displayed in Brazil.1

Some scientists think Angaturama might be the same species as another spinosaur called Irritator, but others disagree.2 1

AI-made picture of Angaturama — An AI-made picture of how Angaturama 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.

you asked

Most asked questions about Angaturama

?How big was Angaturama?

About 6 to 8 meters long and weighed around 1 tonne, making it one of the smallest spinosaurids.5

?What did Angaturama eat?

It mainly ate fish, using its long snout and interlocking teeth to catch them. It also sometimes ate pterosaurs, either by hunting or scavenging.5 6

?Did Angaturama have a sail on its back?

Yes, like other spinosaurids, it likely had a sail on its back made from long spines on its vertebrae.5

?Is Angaturama the same as Irritator?

Some scientists think Angaturama might be the same species as Irritator, but others disagree. More fossils are needed to know for sure.5

?Where did Angaturama live?

It lived in what is now northeastern Brazil, in a tropical coastal lagoon environment with dry land nearby.5 6

?Could Angaturama swim?

Yes, it likely spent a lot of time in water hunting for fish. Its nostrils were placed far back on its snout to help it breathe while underwater.5 7

?Did Angaturama have feathers?

Nobody knows for sure. No feather fossils have been found with Angaturama, and most spinosaurids are not thought to have had feathers.5

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For dino experts

Scientific name: Angaturama
Named by: Kellner and Campos 19968
Group: Spinosaurs
Family / clade: Spinosauridae8
Classification: Theropoda > Spinosauridae8
Age of the rocks: 120 to 113 million years (Aptian)8
Rock formations: Romualdo8
Countries: Brazil8
Fossil records: 1 in the Paleobiology Database8
Discovery: Angaturama was named by Brazilian paleontologists Alexander W. A. Kellner and Diogenes de Almeida Campos in February 1996. The fossil snout tip was found in a limestone nodule from the Romualdo Formation in Brazil.1 3
Still debated: Scientists are not sure if Angaturama is a separate species from Irritator, or if they are the same dinosaur.2 1

Where the facts come from

Irritator (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
First Early Cretaceous theropod dinosaur from Brazil with comments on Spinosauridae - Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 199 Heft 2, Schweizerbart science publishers (schweizerbart.de)
Angaturama limai (es.wikipedia.org)
Irritator (Wikipedia) (Wikipedia)
Dinossauro Carnívoro - Angaturama limai (museunacional.ufrj.br)
Spinosaur taxonomy and evolution of craniodental features: Evidence from Brazil (pmc.ncbi.nlm.nih.gov)
Angaturama 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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