I leave a story taken from a blog friend that I visit a lot:
A new discovery in the world of paleontology, a "cactus" errant who had ten pairs of jointed legs. Measuring 6 inches long. Dwelt in the depths of the Asian seas more than 520 million years and may be the oldest ancestor (discovered so far) of the current spiders.
This strange creature called Diani cactiformis and is considered the first known missing link between worms and arthropods.
The D. cactiformis inhabiting the seabed in what is now the province of Yunnan, the Himalayas and southwest of China.
"Its importance is that arthropods are a group of invertebrate animals is most successful and very nice to have discovered the animal may be the most primitive of this group with jointed legs "
recognizes responsible for research, Jianni Liu, Northwest University, Xian , China.
This discovery, published on the cover of the prestigious journal Nature, provides evidence that arthropods evolved from the ancestors of the worms, whose fossil records date back to the Cambrian period.
Its fossil was discovered in 2006 during an excavation in China's Yunnan province. Then, after analyzing it and look under the microscope, the researcher,
"I realized that was not just a funny animal, but it was a very important discovery"
According to scientists, Diani could move at great speed and leap with great agility, but these superb physical condition also did not prevent extinct.
The team believes, even some of the appendages of these animals evolved into predatory joints were more survivability to the arthropods.
Source: http://www.xatakaciencia.com/paleontologia/el-cactus-que-caminaba
Apparently the way to the jointed legs originated from flexible legs. How in the current Onychophora, which is a phylum of animals rather odd, I leave a picture:
Looks great-grandfather one hundred feet do not you think?
If you want to review the Nature article, please send me an email and we will gladly send them
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