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Introduction to Amargasaurus Dinosaur

Amargasaurus is a genus of titanosaurian sauropod dinosaur that lived approximately 121-107 million years ago, during the Early Cretaceous Period in the region of what is now Argentina. These dinosaurs were primarily plant eaters, although some paleontologists have suggested that they may have also eaten small lizards and other animals. Amargasaurus is known for its unique string of spines along its neck and back.

The first Amargasaurus remains were found in 1984 by paleontologist Diego Pol in the Argentine province of Neuquén. These remains included much of the skeleton, although their head and neck were not found. Based on the bones, scientists concluded that Amargasaurus was a large dinosaur, measuring around 25ft (7.6m) long and built in a similar way to other titanosaur sauropods.

Appearance of Amargasaurus

Due to the fact that the skull of Amargasaurus was not found, scientists can only speculate about what this dinosaur looked like. However, based on its neck vertebrae, they were able to assume that it had a long, S-shaped neck and a small head, similar to its close relatives.

The most unique feature of the Amargasaurus is the presence of long, narrow spines that run along its back and neck. The spines were likely used for protection from predators, but some theories suggest that they also helped it regulate its body temperature. There are also some theories that the spines might have served as a form of display, as several other large plant eaters have been shown to have large, ornamental horns and crests.


During the Early Cretaceous period, the environment of Modern-day Argentina was much different than it is now. It was an arid desert environment and much of the land was covered with savannas and deserts. The climate was hot and humid, trending towards semi-arid as the distance from the coast increased.

The Amargasaurus lived alongside many other creatures during its time, including numerous birds, lizards, and mammals. But the most common creatures in the area were other dinosaurs, including the meat-eating Allosaurus and the plant-eating Sauroposeidon.

Amargasaurus two

Diet and Behavior

Amargasaurus was a herbivore, meaning it fed primarily on plant matter. However, the exact diet of the Amargasaurus is not known. Some researchers think they may have fed mainly on leaves, while others believe they may have fed on a mixture of leaves, twigs and other plant matter.

As for its behavior, it is believed that the Amargasaurus was a social creature, living and moving in herds. It is also believed that the Amargasaurus was fairly slow-paced, as most sauropods are, but it may have had the capability to move quickly in short bursts if needed.

Paleontology and Discovery

Amargasaurus was first discovered in 1984 by paleontologist Diego Pol, who was working in the Argentine province of Neuquén. The exact location was the Candeleros Formation, where Pol and his team were looking for fossils. The remains of Amargasaurus were nearly complete and included much of the skeleton, although the head and neck were missing.

Based on these remains, researchers were able to determine that the Amargasaurus was a titanosaur, a group of large, long-necked herbivorous dinosaurs. They were also able to estimate its size at around 25 feet (7.6m) long.

In 1987, a second Amargasaurus specimen was found in the nearby Bajo de la Carpa Formation. This new specimen had complete head and neck fossils, which enabled paleontologists to gain a better understanding of the animal’s anatomy. Since then, more specimens have been found, giving scientists more information about the species.


Amargasaurus was a large, plant-eating dinosaur that lived during the Early Cretaceous period. It was easily recognizable due to its unique row of spines along its neck and back. The exact purpose of these spines is not known, but it is believed that they served as protection from predators or a form of display.

Today, the Amargasaurus remains one of the most mysterious sauropod dinosaurs we know of. We may never know the exact purpose of its spines or why it had such an unusual appearance, but it still stands as a testament to the diversity of life that lived on Earth during the time of the dinosaurs.

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