Showing posts with label Jurássic.. Show all posts
Showing posts with label Jurássic.. Show all posts

Rhamphorhynchus







What would you think if you walking down a lonely street, hear a deafening roar, a wrenching and inhuman scream and scared to lift the head, could see the creature we see up above.

The options are many:


  • Some mad scientist has mixed the DNA of various beings and created this abomination. 
  • You are hallucinating and think that mixing alcohol with sleeping pills are not a good idea. 
  • Or, the most likely option. It has breached spacetime that has joined your space-time now with the space-time Earth 150,000 years ago. Facilitating the passage of this prehistoric be watching you from the roof.



Because that's the most likely possibility, I see the urgency of what this should you ever be wrong with you. 

This prehistoric flying animal called Rhamphorhynchus, translated into our language, would mean lizard "Muzzle Duck". 



The Rhamphorhynchus was one of the first pterosaurs and its features that distinguish it from other pterosaurs, we highlight its longer than normal tail. Of course, his mouth is also very peculiar. The duck-shaped, flat and wide mouth (though with long, spiny teeth) would be a good tool for catching fish. There are experts who claim that they were not so specialized, and their diet was more varied.

The other important difference from most modern pterosaurs is that the crest did not Rhamphorhynchus neither bone nor cartilage or anything. I had no intention to leave it. 
Stands and this flying lizard reach up to our chest and wing span was almost 2 meters. 
He lived in what is now Europe and Africa in the Jurassic.

Pterodactylus.



Pterodactylus is a genus of pterosaur (the first to be named and identified as a flying reptile) that lived during the late Jurassic Period. Fossils have been discovered in Europe and Africa.Its name refers to the long finger that holds the wing-like membrane bats. It was a carnivore and probably preyed upon fish and other small animals.

Pterodactylus was a relatively small pterosaur genus, with adult wingspans ranging from 50 centimeters (1.5 ft) in P. kochi to 2.4 meters (8 ft) in P. grandis

Pterodactylus was found to have a striated soft-tissue crest on the skull. Soft tissue impressions also showed unusually long, sharp, and recurved keratin sheaths on its claws. It was covered in hair-like integument, with a mane of longer hair running down the back of its neck.



http://en.wikipedia.org/wiki/Pterodactylus

Amphicoelias fragillimus,possibly the biggest terrestrial animal of the history.


Amphicoelias (pronounced /ˌæmfɨˈsiːliəs/, meaning 'doubly hollow', from the Greek amphi: "on both sides", and koilos: "hollow, concave") is a genus of herbivorous sauropod dinosaur that includes what may be the largest dinosaur ever discovered, A. fragillimus. Based on surviving descriptions of a single fossil bone, A. fragillimus may have been the longest known vertebrate at 40–60 meters (131–196 ft) in length, and may have had a mass of up to 122 metric tons (135 short tons), rivaling the heaviest animal known, the Blue Whale. However, because the only fossil remains were lost at some point after being studied and described in the 1870s, evidence survives only in drawings and field notes.

Carpenter examined the paleobiology of giant sauropods, including Amphicoelias, and addresses the question of why this group attained such a huge size. He pointed out that gigantic sizes were reached early in sauropod evolution, with very large sized species present as early as the late Triassic Period, and concluded that whatever evolutionary pressure caused large size was present from the early origins of the group. Carpenter cited several studies of giant mammalian herbivores, such as elephants and rhinoceros, which showed that larger size in plant-eating animals leads to greater efficiency in digesting food. Since larger animals have longer digestive systems, food is kept in digestion for significantly longer periods of time, allowing large animals to survive on lower-quality food sources. This is especially true of animals with a large number of 'fermentation chambers' along the intestine which allow microbes to accumulate and ferment plant material, aiding digestion. Throughout their evolutionary history, sauropod dinosaurs were found primarily in semi-arid, seasonally dry environments, with a corresponding seasonal drop in the quality of food during the dry season. The environment of Amphicoelias was essentially a savanna, similar to the arid environments in which modern giant herbivores are found, supporting the idea that poor-quality food in an arid environment promotes the evolution of giant herbivores. Carpenter argued that other benefits of large size, such as relative immunity from predators, lower energy expenditure, and longer life span, are probably secondary advantages.

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