Dreadnoughtus.


We found another giant dino in Argentia. A country where we found a large dinosaurs such as Argentinosaurus, Giganotosaurus, the Tyrannotitán 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.

Cynodonts

Before the Jurassic period, the great age of the dinosaurs, we find the Triassic, not as well known but very interesting events. In this period when the continents are separated from Pangea, facilitating new diversity of different species. During the Triassic mammal-like reptiles disappeared or mammal-like reptiles ... a type of animal that are midway between mammals and reptiles, and it was late in the period when the first dinosaurs dinosaurs (again because it gives me the wins).


An example of these reptiles mamiferoides disappeared are cynodonts. The cynodont is a missing link between reptiles and mammals, in fact, its name literally means "dog teeth" and if we saw it, we remind some kind of dachshund with a little alopecia. It is an animal that does not exceed one meter in length, with a small, thick tail of about 30 cm. It fed on insects and small reptiles.

When it ran, its back was moving from side to side like a lizard running (just imagine a komodo dragon running); but its body has hair and live in burrows with his beloved spouse, like mammals.

Another feature of this prehistoric animal and half mammal, half reptile, is the offspring. The couple lived cynodont within a burrow, and inside this put the eggs were hatching, like most reptiles. However, when pups out breaking the shell, they were totally dependent on their parents. For example we see that existing crocodiles out of the burrow and are adults but reduced, however, the size of most mammals are born and take time to break away from the mother because they are dependent and need to develop a strategy is more ... survival differently. Well so do the cynodonts, pup birth three months are left sucking the milk from the glands of the mother and not leave the den until they are developed enough. This is a clever way that the offspring is not threatened by predators that may have the outside world.


How I love the picture above, it is as if it were a super-predator, dangerous and totally unscrupulous murderer mammiform. But let's face it, maybe it was like in the image below.


The importance of these mammal-like reptiles, is that these small mammals evolve and hairy (the size of mice or squirrels), since dinosaurs were the kings of the food chain for 160 million years. You and I probably have in our genes the essence of cynodonts.

Aphelops



This is probably the last prehistoric animal of which I write until I get back from vacation, however, I mustered all my strength (which are already few when you look approaching the holidays) and have compiled enough information to get an idea of ​​this creature surprising. The name of this animal is to Aphelops Mutilus.

What does your name?

How ever we have seen, the name that experts give some prehistoric animals are simple, then put them in Latin or Greek, and it looks like something out of a more sensible work all palontólogo scholar and scientist. Nooooo, I do not mean this ... Mutilus, which is mutilated, and Greek + Ops aphelēs soft face. If we put all of this creature's name can be translated as the soft face mutilated. Actually, this name refers to the impression given paleontologists who discovered its remains for the first time. Found a rhinoceros, huge, which was lacking something, I had no horn ... hence the name soft mutilated face ... and how was it?

Well, as I said, it was a rhinoceros, an ancestor of the white rhino and black, but also the woolly rhinoceros. Easily exceeded 4.2 meters long (14 ft.) and was close to 3 meters tall (9 ft,). They were immense.

A large male white rhino can exceed 3,000 kg (6.600 lb), but easily surpassed Aphelops 4 tons (8.800 lb). Its constitution was robust, the larger body and smaller legs. Looked more like a hippo rhino.

Petite legs, big, round and with a huge rib cage body, without much hump like a rhinoceros. In fact, after analyzing the skeleton and teeth, experts concluded that the Aphelops Mutilus spent much of their time in the water, as hiccups live. Once out, he would be helpless, despite its large size, face formidable predators as Hyaenodon or Entelodon (or giant boar). If only I had a horn to defend ...

This large herbivore existed in the Miocene, between 20 and 5 million behind in what is now North America. Besides Aphelops Mutilus have been classified two species: Aphelops malacorhinus and Aphelops megalodus.

Panthera tigris acutidens


I'll tell you a secret. When we speak of prehistoric big cats, the most powerful, the most dangerous and terrible hunter, it's easy to come to mind two species: the Cave Lion (Panthera leo atrox) and the saber-toothed tiger (Similodon).

But really, there is another species that is probably the most terrible, strongest, largest cat that ever lived and that's a real unknown to the general public, it is the Panthera tigris acutidens. A cat can only hunt animals such as Stegodon (which is a type a type of small elephant) or Calicoterio. To get an idea, this prehistoric cat could hunt down an actual cape buffalo. One of those we see in documentaries Africa needed 4 or 5 lions to tear it down.

Panthera tigris acutidens, as the name suggests "tigris" is a kind of tiger. In fact it is considered a direct ancestor of the Asian tiger, the largest today.

Little is known of this beast. It was not only larger than the largest tiger today, it was also more massive. Therefore, it is thought that it was not a long distance runner, but short and quick, races depended stalking and grounds overgrown jungle that allowed close enough to approach their prey in a quick race. It is believed that could weigh 450 kg (992 lb), 100 kg (220 lb) more than the Siberian tiger. Moreover, the cross came to 1.30 meters and tail, could reach almost 4 meters (13 ft,).



The tusks of this were in line, about 15 cm in length. And when I was able to reach its prey nailed them like sharp daggers or spine smashed or crushed trachea hunted animal.

He lived 2 million years ago and it is not known exactly when it died ... in the early Pleistocene. In cold, snowy woods of what is now China and other parts of Asia, where its winter whitish camufrarse allowed.

Chirostenote


Ladies and gentlemen, sorry for a season without dealing the blog as much as I would have liked, but that is over. Moreover, nothing happens, the dinosaurs are timeless and, in gratitude and with intent to redeem myself, I want to show you one of the most picturesque dinosaurs that ever lived. This is the Chirostenotes, the "narrow hands."

You see the image below, you will understand what the name refers Chirostenotes or "close hand" ... no trick, its hands were narrow.



The "hands" of this saurian, were long and narrow, with very long fingers ending in sharp claws. That is the main feature.

Another feature of this prehistoric animal was its head. Look at the image below.


You know who is? As this animal is a Cassowary, a bird now living in Australia and New Guinea ... and is very aggressive. It is thought that the ridge has the Cassowary is similar to that which took the Chirostenotes. In fact, it seemed a little ... even thought this lizard was a bird. It had feathers, was bipedal, lakes and light arms and a crest like a Cassowary. But it really was not a bird.

Chirostenotes's jaw was sort of a parrot but was full of teeth. Media about 3 meters long and when were stood as tall as the average man. Grew to weigh no more than 60 kg. And think were fast and agile hunters who traveled at high speed and making great leaps and light careers.

It lived 75 million years ago in what is now Canada. And it is known today more than ever, especially for children, as it is one of the protagonists of the series of drawings Dinotren. Is smug and was known as Keenan.
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