Showing posts with label Patagonia Argentina. Show all posts
Showing posts with label Patagonia Argentina. Show all posts

Dreadnoughtus.


We found another giant dino in Argentia. A country where we found a large dinosaurs such as Argentinosaurus, Giganotosaurus, the Tyrannotit√°n or Madtsodia Bai, all with records in size and can be many sauropods, theropods, or the serpent, the world's largest.

The name of the great saurian, a large sauropod and what some call "the king of the dinosaurs," has been named to Dreadnoughtus, which could translate as "he who fears nothing."


Maybe call it "the king of the dinosaurs" is a bit exaggerated. Mostly because if there was a king, this could be the Argentinosaurus, a saurian also found in Patagonia Argentina but measuring up to 35 meters in length; this is about 8 meters more than Dreadnoughtus measuring 26 meters. We must clarify that the measures that have been extracted from fossils found, and it seems, could be a copy would not be fully developed, so it can even be bigger or heavier.

If we compare the weights, Dreadnoughtus reaches 65 tons. And the Argentinosaurus perfectly exceeded 100 tons, some estimates put it at 130 tonnes.



Dreadnoughtus What do we know?

First of all note a curiosity, the name refers to one of the battleships armed Argentina: monocaliber battleships. But do not mix ....

What is striking is that this prehistoric animal were recently discovered, and not one or two bones as usual, but much of the skeleton. It has been found 70% of the skeleton, also in very good condition and its deformation (by the weight of the earth) is minimal. In fact, it has provided new information about the pelvis, extremities and shoulder girdle of Titanosauria family. A family that owned the Dreadnoughtus but also Diplodocus, Giraffatitan or Argentinosaurus.

They were large herbivores that dominated the earth, like all sauropods. Elongated necks and stylized whiplike tails. A highlight feature of this lizard, was that its neck was compared with other sauropods, a bit thicker and more muscular.


The great saurian lived in the forests of what is now South America 75 million years (Cretaceous) ago.

Brontornis burmeisteri

A fearsome carnivorous birds and greatest of all time was the Brontornis burmeisteri. A flightless bird belonging to the subfamily Brontornithinae, which rivals the size of titanium-prehistoric other birds such as the family of Phorusrhacidae (known as "Terror Bird") or other more current and Dromornis (known as the "elephant bird").

The Brontornis burmeisteri was first introduced in the subfamily of "Terror Bird" and it is because their physical characteristics were similar for its large size and predatory lifestyle, and more specifically introduced in the subfamily Brontornithinae that contained very large and stout forms.

Had a height of almost 3 meters and its weight could reach 500 kg. He had some strong legs, able to tear the skins of their prey with a single blow. To get an idea: we can look at the Cassowary bird-like prehistoric currently living in Australia and New Guinea and is able to kill people with their claws. It measures half a burmeisteri Brontornis and herbivore.
The prehistoric bird lived in what is now called the Patagonia (South America). Due to the volume, is likely to have a lifestyle between an ambush predator and prey actively chasing, jumping on her and shot down by the strike force after a short chase.
Was the dominant carnivore during the Miocene Patagonia, being able to kill even large animals like elephants and the predator Thylacosmilus Astrapotherium (a saber-toothed marsupial).

Simply fascinating.

Abelisaurus or Abel's lizard



At the end of the Cretaceous period in what is now South America, approximately between 83 and lived 80 million years ago the "Abel's lizard" or Abelisaurus. With a skull up to a meter and sharp teeth this carnivorous predator of between 7 and 9 meters (25 to 30 feet)long and weighed about 3000 kilograms, were living with other predators such as known Tyrannotitan or Carnotauros, fierce competitors for the same prey as old tyrannotitanes patients. The Carnotaurus, was probably a abelisaurid early, scientists assume that Abelisaurus also had front legs short and slender limbs.



The discovery of Abelisaurus is important because it sheds light on many theropods (carnivorous diet and walking biped with three fingers to the front and provided with sharp claws) than the southern hemisphere that were very different from their relatives in the northern hemisphere. This was the result of the separation of land masses of North and South that began in the Jurassic period.
Not go into the morphological differences ... anyone who wants to know them I invite you to search Wikipedia.

Cynognathus.




The size of a large dog, this therapsid (reptile-like mammals) was a terrifying predator of the prehistoric period. He lived in the Triassic and Lower Jurassic (made between 245 and 208 million years ago) in what is now South Africa, Argentina, China and Antarctica. It was one of the most impressive land predators of its time.
Praising Cynognathus fossilized skulls of openings have been observed at the height of the snout, typical skulls of mammals, where vessels and nerves pass supplying the whiskers, similar to cats and dogs. So you think you had hair, and that these particular should serve as sensory organs.
With almost two meters long (6.3 ft counting the tail) and a head of 30 cm (1.0 ft) with wide jaws and sharp teeth, its bite was strong and had to exert great pressure (similar to today's crocodiles with 2500 kg of pressure.
The Cynognathus was an agile runner and can reach a speed of 35 km / h. .. conclusion was a very effective and powerful carnivore.

Glyptodon



The glyptodon, always connected with existing armadillos, a native of America. The glyptodon measured about 3 m and weighed about 1.4 t, being equivalent in size and shape to a Volkswagen Beetle. It was a herbivore and, by its constitution, it is assumed that it was not very agile. His defense against predators was based on its rigid shell. Different species are distinguished by different types of shells. Many of these shells remained empty throughout the plains of Uruguay and Argentina will likely serve as a refuge for early humans in the region.

The glyptodon is part of the group of placental mammals known as Xenarthra. This order of mammals includes armadillos, as well as several extinct species.

The glyptodon emerged in the Pliocene in South America, migrating north after, when the Isthmus of Panama joined the Americas. It is believed that they were hunted by human populations in their environment, to use the carcasses of dead animals as a refuge from hostile environments. Became extinct about 10,000 to 8,500 years.



The glyptodontes oldest known lived in the early Tertiary and were not very large. After appearing species were becoming larger, until in the Quaternary, when there were also megatherium, there were real giants who roamed in what is now Patagonia Argentina. They had a great half-shell shaped eggshell consists of many hexagonal shaped plates, round, etc.., He was locked below the animal's body with a sturdy skeleton, had a long tail, some species, finished off with barbed thick and compact.
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