What can scientists learn from 520 million year old cardiovascular system?

cardiovascularThe 520 million-year-old fossil – about three inches long – of an extinct marine creature called Fuxianhuia protensa – ancestral to modern day arthropods – is the earliest known cardiovascular system to have been discovered by scientists so far.

This is the first preserved vascular system that we know of,” Nicholas Strausfeld, a Regents’ Professor of Neuroscience at the University of Arizona‘s Department of Neuroscience, who helped analyze the find said in a press release.

Found in sedimentary rocks of fine-grain mudstone from the lower Cambrian period in southwest China, such an elaborate and “remarkable example” of preservation is quite rare.

Fuxianhuia is relatively abundant, but only extremely few specimens provide evidence of even a small part of an organ system, not even to speak of an entire organ system,” said Dr. Strausfeld, an author on the paper published in Nature Communications.

source : http://www.csmonitor.com/Science/2014/0409/What-can-scientists-learn-from-520-million-year-old-cardiovascular-system

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