Shonisaurus sikkanniensis.


Ichthyosaurs were large marine reptiles with an aspect between fish and dolphin. Werereptiles, which through evolution and centuries, returned to the water. As did the whalesand dolphins, mammals that returned to the sea mainly in search of food.

Within the ichthyosaurs, are the Shonisaurus sikkanniensis. A species that is possiblythe largest marine reptile so far discovered. Although little intimidating appearance, their size allowed devour large and fearsome creatures as giant squid and fish andother smaller reptiles.

His mouth was three meters long (similar to Liopleurodon) and body size is estimatedat 21 meters. Other animal related to Shonisaurus popularis Shonisaurussikkanniensis was 15 meters long. But let's focus on the S. Sikkanniensis.

Her body was among whale and dolphin, but then she was a reptile. Their wings werehuge, his bones as well (the ribs came to be more than 3 meters) and weighs 40 tonscould reach easily.
By the way, lived in the Triassic.






Curiosity: The majority of fossils have been found in the Shoshone Mountains at an altitude of about 7000 meters above sea level.

Hurdia Victoria.

The further back in time, the prehistoric animals are rare, most unique and peculiar to our eyes. First adjustments, tests and experiments of evolution that is distributed andbranches, people still just a piece of a twig of the tree .... or less.500 million years ago during the Cambrian, appeared in the seas and oceans a trulystrange, like a squid but with teeth, larger body and gills was easier to pick up oxygen from the water and move faster. This is the Hurdia Victoria. Anomalocaris close relative to similar in many respects.

The Hurdia Victoria was a top predator of its time, ate many species with basic anatomical models and dominated the seas and oceans and the creatures of their time. Keep in mind that during his appearance was the Cambrian Explosion and manynew species were appearing and taking their first steps on dangerous waters and old.
And how was the Hurdia Victoria? Well, this prehistoric animal that is considered an ancestor of the arthropods, the large group that includes insects, crustaceans, spiders,millipedes and Chilopoda; could measure about 50 cm, which is giant compared tomost animals at the time.

His head had a couple of thorny claws (appendices), which helped carry food to hismouth, like a slice of pineapple. He had a hole in the pointy bump on the front of hishead, although the function of this organ remains unknown, since no protection couldhave been because there is underlying soft tissue. He lobes along the sides of the trunk, which were suspended large gills.

Predator and scavenger (supposedly) is considered by experts as the TyrannosaurusRex of the Cambrian.
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