PRESENTED IN BRAZIL A FOSSIL OF "GIANT CROCODILE MARINO"
A fossil a huge variety of marine crocodile that lived more than 62 million years was presented in Rio de Janeiro by a group of scientists recently developed a new theory of evolution of this group of reptiles.
was baptized as Guarinisuchus Munizi ", ie" warrior of the seas. " Found on the coast of Pernambuco State in northeast of Brazil in typically marine rocks, immediately captivated the attention of both experts and the public.
was part of a group who lived in the Paleocene period, for 65 up to 55 million years ago, and resisted the cosmic phenomenon that caused the disappearance of large lizards , ie , the famous " terrible lizards" or " Dinosaurs."
The paleontologist Maria Somalia Sales Viana (Universidade Estadual Vale do Acaraú "), explained the restoration of the huge alligator in the middle of a large press conference.
From a jaw, skull, and several vertebrae, is able to identify the most complete fossil of its kind found so far in Latin America . With the investigations, we were able deduce new ideas about the routes that these reptiles to expand in a world as distant, mysterious and primitive.
estimated by paleontologists, that the oldest appeared about 200 million years in Africa.
from After African continent, would have occupied vast areas of South America , and only much later, the unknown regions of North America .
In these times of tremendous geological convulsions, Africa and the tip of Northeast were much closer now, as pointed out with exquisite sharpness Maria Somalia Viana, the scientist in charge of the dissemination of news to the mass media.
addition, work experts, published in British scientific journals, have established that, at the time, these huge crocodiles were the largest predators in the aquatic environment. There are abundant examples and certainly interesting.
The giant " Nistriosaurio " to quote one, was located in Europe, specifically in South Germany, in rocks from the Jurassic Period. It was huge, measuring over 10 meters long, and had his back covered with bony plates. It probably ate fish and smaller reptiles and cuttlefish .
However held a position lower than the " Ramphosuchus " or " Rhamphosuchus , which grew to be 17 meters long. The latter, ancestor of the "Gharial " of the rivers of India , lived in Asia during the Miocene . Another big crocodiles, the " Deinosuchus " was over 15 meters long, and highlighted by a singular ferocity.
Earlier in the Cretaceous , period that geologists are between 140 and 65 million years ago There was another group of reptiles called " mosasaurs, group of large and powerful marine lizards , which completely dominated the oceans , according to the famous paleontologist Alexander Wilhelm Armin Kellner .
One of the most feared among these lizards like "sea snakes", was called the " Tilosaurio " or " Tylosaurus ." Animal teeth and body armor, was the scourge of flying reptiles or Pterodactyls ", which skilfully caught in flight.
Another, among the most voracious, was the" Cronosaurio "or" Kronosaurus " that fed on "Shark", not disdaining to fight with their peers, and swallowing to other aquatic reptiles.
After the great extinction of the famous and known KT Boundary ( Cretaceous - Tertiary ) , extinction certainly cosmic origin, many large species marine and land disappeared, and the big crocodiles came to occupy the top of the pyramid zoo. The strange Brazilian fossil was found in the famous mine " Poty, one of the regions of Brazil where rocks abound very specific, clearly document the passage of the Cretaceous Period to Paleocene, and also recorded the mass extinction mass that happened 65 million years, during which vanished for ever the most amazing variety of prehistoric animals.
As a conclusion or final message of this article, we wish to recall the words of James Clark known paleontologist the " Department of Biological Sciences" (Department of Biological Sciences ") in" George Washington University "(" George Washington University ") in relation to the family called Crocodylidae :" The crocodiles Were more diverse in the past Than They Are Today "(ie, translation:" The cocodriloformes had much more diversity in the past than face today. ") 
0 comments:
Post a Comment