19 Jaw-some Facts About The Aeolosaurus For Kids


The Aeolosaurus aeolus is a well-known titanosaur and it is described through the various remains of several individuals that hint at the presence of at least three species. The Aeolosaurus rionegrinus, Aeolosaurus colhuehuapensis, and the ‬Aeolosaurus‭ ‬maximus were the three known species until 2021 when Aeolosaurus maximus was transferred to the Arrudatitan genus that also consisted of several titanosaur species.

Currently, there are four known species of Aeolosaurus and all of them have been discovered in Argentina and Brazil.

Aeolosaurus rionegrinus is described as a type species of the Aeolosaurus, and most of the information about this Sauropoda is known from the specimen MJG-R 1, found in the Angostura Colorada Formation in Argentina. The specimen consists of seven caudal vertebrae and several appendicular parts. The structure of the limb bone indicates that this dinosaur was robust just like the Saltasaurus.

Aeolosaurus colhuehuapensis was found in the Lago Colhue Huapi Formation in Argentina and it is known from the 21 caudal vertebrae that were discovered.

In 1993, another specimen was discovered which consisted of five tail vertebrae and some pelvis and forelimb remain. It is believed that this discovery was of two individuals as the fossils consisted of two sets of remains. This specimen was discovered in Rio Negro in the Allen Formation. However, this species is understood to have belonged to a younger time period, making it more of a second species.

Paleontologists described another partial skeleton named 'MPMA 12-0001-97' in 1997 which consisted of four tail vertebrae and limbs from the left side of the body. This discovery was made in Rio Negro in the Los Alamitos Formation. This particular specimen was linked with the Aeolosaurus genus and is believed to represent a third species as it did not match with the fossils of the Sauropoda Aeolosaurus rionegrinus.

Jamie Powell, an Argentinian paleontologist described and named both the type species Aeolosaurus and the Aeolosaurus rionegrinus. In 2004, the Gondwanatitan and the Aeolosaurus were identified under a new titanosaur group called Aeolosaurini.

South America has been the home of many discoveries of various dinosaur groups including the Argentinosaurus and the Aeolosaurus that existed during the upper cretaceous period. Until today, at least four species of Aeolosaurus have been discovered in the form of the Aeolosaurus colhuehuapensis, Aeolosaurus sp. Gondwanatitan faustoi, A. rionegrinus? and Aeolosaurus rionegrinus in Argentina in the Allen, Los Alamitos, Angostura Colorada and the Bajo Barreal formations. The Marilia and Adamantina formations in Brazil have also been discovery sites of the remains of these titanosaurs.

Aeolosaurus Interesting Facts

How do you pronounce 'Aeolosaurus'?

The Aeolosaurus is pronounced as 'Ay-oh-lo-sore-us'.

The literal meaning of the name Aeolosaurus translates to 'Aeolus lizard'.

What type of dinosaur was an Aeolosaurus?

Aeolosaurus has been described as a Sauropoda group that existed during the late cretaceous period.

Aeolosaurus, like other sauropods, was a large, quadrupedal herbivorous dinosaur. The description of this dinosaur is based on the remains found of parts of both forelimbs and the right hindlimb and a holotype that consists of a series of tail vertebrae.

In which geological period did the Aeolosaurus roam the earth?

Based on the studies of the Aeolosaurus fossils like the neck vertebrae and forelimb, their existence is dated to the Late cretaceous period's Campanian stage, which dates back to 74-83 million years ago.

When did the Aeolosaurus become extinct?

Aeolosaurus became extinct by the end of the Maastrichtian age.

Where did an Aeolosaurus live?

The Aeolosaurus genus is widespread and the remains of these dinosaurs have been found in South America. Most of the fossils have been discovered from the Los Alamitos Formations, Allen, Angostura Colorada, Bajo Barreal formations in Argentina, and the Marília Formation in Brazil.

What was the Aeolosaurus's habitat?

Aeolosaurus are believed to inhabit dense vegetation areas where they could feed on the leaves of gigantic trees that grew during the late cretaceous period.

Who did an Aeolosaurus live with?

The Aeolosaurus shared its habitat with dinosaurs like the Ankylosaurs and Hadrosaurs, and at least five other titanosaur species around 74-83 million years ago.

How long did an Aeolosaurus live?

The lifespan of the Aeolosaurus cannot be stated due to a lack of data.

How did they reproduce?

Unfortunately, there is not much information about the reproductive capabilities of this dinosaur.

Aeolosaurus Fun Facts

What did an Aeolosaurus look like?

Since the Aeolosaurus belongs to the Sauropod group of dinosaurs, it is believed that they were extremely large, had long necks, and were quadrupedal herbivores.

The tail of this dinosaur is believed to be curved downwards which is a trait that they share with other Aeolosaurini members. The tail of this dinosaur is thought to have not touched the ground and they put force on the caudofemoralis that extended from the femur to the tail vertebrae.

These dinosaurs also bore osteoderms that created bone structures used for defense.

Aeolosaurus are also known as the Aeolus lizard.

*We've been unable to source an image of Aeolosaurus and have used an image of Zalmoxes instead. If you are able to provide us with a royalty-free image of Aeolosaurus, we would be happy to credit you. Please contact us at [email protected]

How many bones did an Aeolosaurus have?

The exact body count of the Aeolosaurus cannot be stated as only various remains of the dinosaur have been found throughout its discovery.

No skull remains have not been found until now and most of the information about these dinosaurs comes from several individuals whose partial remains have been discovered.

The information about the Aeolosaurus rionegrinus is based on parts of both forelimbs and the right hindlimb of the dinosaur along with a holotype that consists of a series of at least seven tail vertebrae. This was discovered in Argentina in the Angostura Colorada Formation. The date-stamp put on the Aeolosaurus rionegrinus puts the dinosaur in the Campanian epoch of the Late cretaceous era, estimated to last between the time of 74-83 million years ago.

The Aeolosaurus colhuehuapensis is through the study of its 21 caudal vertebrae that was found in Argentina.

There have been more specimens found in Argentina in regions like Rio Negro's Los Alamitos Formation with some of these fossils referred to as the genus Aeolosaurus, and a whole new third species.

How did they communicate?

Due to a lack of evidence, the communication method of this dinosaur cannot be stated.

How big was an Aeolosaurus?

The Aeolosaurus negrinus species is believed to have been around 45.9 ft (14 m) or more in length. This estimation was altered in 2020 when the new body length of the Aeolosaurus rionegrinus was estimated to be close to 60 ft (18.2 m) in length.

How fast could an Aeolosaurus move?

Based on the intricate study of Sauropod species, it is estimated that the Aeolosaurus, too, was a slow-moving animal because of its massive body length.

How much did an Aeolosaurus weigh?

As of 2020, the Aeolosaurus negrinus is estimated to weigh around 32408 lb (14700 kg).

What were the male and female names of the species?

Not much is known about this dinosaur to provide a distinct name for either sex.

What would you call a baby Aeolosaurus?

A baby Aeolosaurus has not been given any distinct name and is known as a baby Aeolosaurus.

What did they eat?

The Aeolosaurus is believed to be a herbivorous creature.

How aggressive were they?

Like most Sauropoda titanosauria species that have been studied till now, it is believed that the Aeolosaurus too was a docile creature and made the use of its large body and tail to ward off predators.

Did You Know...

The Aeolosaurus and the titanosaur Gondwanatitan are believed to have had a close relationship, the information for which originates from the fact that Gondwanatitan was named from an Aeolosaurus species named Aeolosaurus faustoi. Both of these titanosaurs are known to comprise neural spines and elongated tail vertebrae and come together to define the Aeolosaurini clade.

Until today, there are three known species of Aeolosaurus and each represents a different province, state, or nation. Aeolosaurus rionegrinus was found in Argentina in the Rio Negro Province in the Angostura Colorada Formation. Aeolosaurus colhuehuapensis was discovered in Argentina in the Chubut Province in the Lago Colhué Huapi Formation, and last but not least, the Aeolosaurus maximus was found in Brazil in São Paulo State in the Adamantina Formation. Most of the South American formations dated to the Cretaceous era are believed to be from the Campanian-Maastrichtian period, making the formations million of years old.

In 2021, the Brazilian species Aeolosaurus maximus was moved into a new genus named Arrudatitan because of the revision of the diagnosis of the specimen, based on the phylogenetic and anatomical data.

The Gondwanatitan and Aeolosaurus were identified during the formation of the titanosaurs group of dinosaurs in 2004. The group was named Aeolosaurini. 2007 and 2011 saw the introduction of the Aeolosaurus colhuehuapensis from Patagonia and Aeolosaurus maximus respectively into the Aeolosaurini group that consisted of these three species alongside the Gondwanatitan.

The name 'Aeolosaurus' takes inspiration from Greek mythology. In Homer's 'Odyssey', Aeolus was a mythological creature who the Keeper of the Winds. The name was based on the frequent winds that blew across Patagonia, where the remains of this Sauropoda were found.

The generic name of this species consists of the Greek word 'Sauros' which translates to 'lizard' and is responsible for the name Aeolus Lizard.

The name of the Aeolosaurus rionegrinus species of the genus Aeolosaurus is derived from the region of Rio Negro Province in Argentina where the remains of this specific species were found. Both the species and genus aeolosaurus were described and named by Jaime Powell, an Argentinian paleontologist in 1987.

*We've been unable to source an image of Aeolosaurus and have used an image of Edmontonia instead. If you are able to provide us with a royalty-free image of Aeolosaurus, we would be happy to credit you. Please contact us at [email protected]

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