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admiring the remains of extinct marine inhabitants "Mesosaurios" "Plesiosaurs" pliosaur, and the kings of swimming, "ichthyosaur"












NEW INFORMATION, NEW APPROACHES








The " Plesiosaurs " had long and flexible neck, over the head of a lizard. Persuade it their bodies in water driven by their large fins. Could vary quickly your neck, back and forth in order to catch fish more easily. And some varieties came to measuring 12 meters long.








The " pliosaur " had a short neck, big head and powerful jaws armed of sharp teeth. Their fins were very strong. Could dive to great depths to catch fish and ammonites or ammonites. Y some specimens exceeding 10 meters in length.







The " ichthyosaurs " were the best swimmers among those sea giants. They finished in the tail fin, likely in order to jump out of the water momentum. His head ended in long jaws filled with sharp teeth that allowed him to catch fish and belemnite belemnites or . This species was originally identified and named in 1840 by biologist and English paleontologist Sir Richard Owen .


In those ancient times there were many classes " ichthyosaurs (also known as" Ictosaurios "or" Ichtyosaurios ). Some of 6 meters, while some even exceeding 12 meters in length. The

"ichthyosaur ", whose name means "fish lizard ", "Sauro-fish " or "reptile fish" - things were very well adapted to marine life. In general external appearance closely resembles dolphins and whales , and could swim showing great agility and speed. Its powerful tail enabled her to jump very high in the air.

His head was large and short neck. And its elongated jaws, equipped with numerous and razor sharp teeth, allow him to feed fish and shellfish .


The " ichthyosaurs " were viviparous, that is not reproduced by eggs but give birth to live young. Indeed, we have found fossils of marine reptiles such with preserved remains of young inside their bodies.

have also been discovered fossils of "ichthyosaur " that have remained in such good condition, which can still be distinguished in the rock, the contour of the respective body. It is propelled by its powerful caudal fin (tail), while on their way to the flaps on the side. Its large dorsal fin, prevented the animal rolled from side to side while swimming. And her large eyes allowed him to see into the depth of water better than other species.








But one of the most feared sea dwellers of ancient times these was the small " Mesosaurio ."

The " Mesosaurios " were primitive reptiles that lived during the Paleozoic . They were relatives of the " plesiosaurs, and in some respects similar to the" ichthyosaurs, but with a different phylogeny.

The " Mesosaurios ", which are among the most ancient marine reptiles known, certainly had fun features.

Their respective bodies were small (between 45 and 60 cm long), elongated, like jaws, which boasted numerous and razor sharp teeth.

Its tail was long and pointed. The toes were webbed, possibly in order to facilitate their travel in the aquatic environment.


is believed that the " Mesosaurios " were carnivores, and inhabitants of lagoons and waterways.

Their fossils appear in rocks Pennsylvanian (Upper Carboniferous of and Permian ) both South Africa and in areas of Brazil and Uruguay , encrypted with a length between 310 and 230 million years. Think

respectfully about all these ancient marine reptiles and strange . And increase our knowledge about them, their possible behaviors, their ways of feeding and reproduction, and so on. Their stories are also part of the rich and diverse history of life in planet.




fossilization process: Death and accumulation of dead, decomposing soft tissue burial diagenesis




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30 Mm See Thru Scope Rings

Mysteries and great dangers in the deep ocean during the Mesozoic: What are revealing and fossils paleogeology




the great sea monsters

During the Triassic period , Jurassic and Cretaceous , huge, warm seas, occupied much of the current plains of Central Europe and North America.



And these seas then housed a variety of marine lizards, such as "ichthyosaur " (Fish, reptile), the " Plesiosaurs " (from Greek and means plesio--nearest-neighbor-) and the " Lepidosauria " (Greek Lepidus - scale -, see images below .)










The " Plesiosaurs " were the largest among aquatic lizards, as they reached 15 meters long, with such the " Elasmosaurio ." Other giants in those distant times were also certainly the " Cronosaurio " (or " kronosaurus "), the " Attenborosaurio ", the " Megalneusaurio " and the " Thalassiodracon " the " Leptocleidus ", and" Cryptocleidus . "








By adapting to the marine environment, its members gradually transformed into "paddles" that propelled the body of these reptiles in the water. And their main diet was fish, even the most fierce and fast.

These beings were skilled hunters and fierce. Nor scorned fight their fellows.






For their part, "ichthyosaur " ferocísimos were monsters, which in its evolution assumed the appearance of fish. His limbs had taken the form of fins and its tail was long and forked.

were screaming fast in the water, and able to give very high jumping in the air.



The ancient " Lepidosauria " or " Saurofidios " were also among the most rapacious reptiles. Their bodies are covered with scales, and in some respects resembled monstrous eels. His dreadful jaws were expandable, such as snakes, allowing them to swallow prey even larger than their mouths.



All were appointed without a doubt dangerous and frightening, but some were real sea monsters, like "Mosasaur ", As some specimens exceeding twelve meters long and exceptionally seventeen feet, but most often than not could place eight to ten meters.



SEA THIEVES

While "Dinosaurs " became the undisputed masters of the land, other reptiles did the same thing in aquatic environments.

Thus, some creatures, such as dams of an unexpected and irresistible nostalgia for their native environment, returning to the sea, again adapted to the marine environment.

These "sea robbers" or "sea robbers" or "nostalgic for the sea", there were also giant species as " Elasmosaurio " up to 15 meters in length. He had Agilis

despite its size, as the " ichthyosaurs, which could make great leaps out of water.

And also there were large and slow as the " Arquelón " (or " Archelon "), giant turtle whose fossil have reached us, and weighing in life must be several tons.

certainly also deserve special mention the " Sauropterigios ", which originated 245 million years ago, and whose first species were small in size and similar to lizards.





Is there "AQUATIC DINOSAUR?

At the same time when "Dinosaurs " prevailed over the continents and land area, dominated other powerful creatures in the aquatic environment.

As mentioned, these Titans were " ichthyosaurs (reptiles, fish ) and" plesiosaurs ( reptiles swans), who mistakenly classifies many times as "Dinosaurs".

But in truth these species were giant marine reptiles, which, after living a few million years on land finally returned to sea following a complex and unexpected storyline.

The most powerful among the " ichthyosaurs " was the " Shonisaurio . He had steely jaws with teeth, which allowed it in turns habilis, catch fish , belemnites and other marine organisms.

Resembling a large dolphin, these things sometimes exceeded fifteen meters long, and gave birth to live young.



In contrast, " Plesiosaurs " had long sinuous neck, very flexible, ending in a terrible lizard head and mouth as well toothed grin of simulating a curious smile corners on the long side.

They also had a steely teeth and fed on fish, but its head, usually small, prevented him from swallowing large prey.

The " Tilosaurio " tooth and body armor, was the scourge of flying reptiles, which could catch in full flight.

The " Tilosaurio " or " Tylosaurio " was a sea creature truly frightening. Fossils indicate that reached fifty feet long, but recent new evidence suggests that it could pass the 17 meters.



Like its rival, the " Elasmosaurio " of 14 meters long and with a neck of 8 feet, these creatures lived in the inland seas of today is North America during the Cretaceous .

the reader should hold the summary data provided here, and to analyze and it internalizes the images presented, because this basic information will allow him to better understanding the evolution of life in the Mesozoic , or in the " Age of Reptiles" and "Age of Dinosaurs ".





mass extinctions - Jurassic World - The prehistoric armageddon

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