The genus Eoraptor was a genus of dinosaurs of which only one species appears, Eoraptor lunensis, found in the Valley of the Moon (South America), which lived on the planet in the Triassic, approximately 230 million years ago.

The name Eoraptor means “thief of the dawn”, and it has been introduced in the group of saurischian dinosaurs, and it is known as one of the first dinosaurs to appear on the planet, and even that it could be a prosaurus, that is to say, that it did not give rise to the lineage of theropods but to that of the great long-necked sauropods so well known, but it is difficult to place it in the phylogenetic tree, but it is known that it is very primitive and basal.

Taxonomy of the dinosaur

  • The specimen belongs to the Animalia Kingdom.
  • The animal was within the Filo or Chordata Division.
  • The class of Eoraptor is the Sauropsida.
  • It belongs to the super-order Dinosauria.
  • Its order is called Saurischia.
  • Its family is Eusaurischia.
  • Its genus is the Eoraptor.
  • It belongs to the species called Eoraptor lunensis.

Characteristics of the Eoraptor

Regarding the dimensions of this specimen, it can be said that it was almost 100 centimeters long, and as for its height, it can be said that it was around 30 cm. On the other hand, its volume has been calculated and could have been less than 10 kilograms.

About its extremities, we can also affirm that the extremities that were located in the front zone of the animal, presented hands that had a total of five fingers, in addition these extremities enjoyed a length quite extended, on the other hand the extremities that we considered like legs only presented hands that had two pairs of fingers.

It has been presumed, due to the size of these extremities, that this animal was one of the fastest of its time, the tail was equally long and is even said to have been an elemental part of the whole structure of the animal.
On the other hand, the area of the neck of this specimen was not of great dimension, on the other hand the area of the skull if it enjoyed a much more prolonged size, in spite of the fact that in fact it was a small specimen, in summary, it is possible to get to affirm with much security that this creature was much faster than other specimens that lived and inhabited the same territory and time.

In addition to this, it must be clarified that this creature was really digitised (it only supports its fingers, not the whole palm) so it only needed the area of its fingers to support itself during the moment of displacement, a fact that confirms the statement mentioned in previous paragraphs.

Discovery of the Eoraptor

The initial discovery was made a year after the beginning of the 1990s by Ricardo Martínez, who himself at that time claimed to have detected a significant group of remains from prehistoric times.

At that time that researcher was only a student who was doing support work for another group of scientists already on the road and world famous, the workplace was located in El Valle de la Luna.
What is really anecdotal about this discovery is that the vestiges were found by accident, the same student Martinez was the one who managed to see only a bone element that had a quite strange shine to end up being a rock, with a little help from the sun’s rays, this same guy was in charge of checking the area and effectively confirmed that in that place there could be an important number of fossil vestiges.

From that moment on, a series of excavations were ordered and organized that had to be quite careful to avoid damaging the fossil material, since it was known from the beginning that these vestiges were going to turn out to be quite important for science. From that moment on, the same individual also took charge of unearthing a bone element belonging to the skull and immediately managed to find a totally intact structure.

After several studies, it was proved that their natural environment was really favored by various conditions typical of the climate, so their territory was probably full of vast vegetation and they even had within their reach a huge river that provided them with the water necessary for life and existence.

Feeding the Eoraptor

This animal was a specimen that based its feeding on the consumption of other animals, that is, on the consumption of the meat of the prey that it managed to capture and kill. This detail is known because it has been possible to study in a detailed way the dental elements of this individual, which enjoyed the form and design adequate for the consumption of meat, besides that it also presented a set of claws that turned out to be lethal for other specimens of its time.

One of its victims could have been the smaller reptiles that were wandering around the place, as well as some insects that it managed to capture, not to mention that probably the most frequent prey this dinosaur managed to catch were the popular smaller mammals.
Nevertheless, there are a great number of researchers who have also studied the dental structure of the animal and who have verified, according to their sources, that heterodontia was a quality present in the Eoraptor, so they finally suggest that this individual was in fact an omnivore, since it not only lived from eating meat, but from eating all kinds of products that provided it with proteins and vitamins for its organism.

As we have already pointed out, this is probably one of the oldest animals, the figure is really magnificent, more than 200 million years ago the existence of this specimen was carried out, which indicates that this is probably the common ancestor of all the other dinosaurs that we have studied throughout this time.

So far science has not been able to determine the real age this animal may have reached, there are numerous theoretical works that argue without much conviction supposed ages but in reality an exact figure has not been determined.

In our current culture we still cannot see many signs of the popularity of this animal, because its discovery and subsequent study has been made recently, we can only see it by chance in some games for children who are recently taking into account the shape and anatomical structure of this magnificent and old specimen.

Now we can only hope that in some of the movies this common denominator of all dinosaurs will be taken into account more.