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chordate

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chordate

Animal belonging to the phylum Chordata, which includes vertebrates, sea squirts, amphioxi, and others. All these animals, at some stage of their lives, have a supporting rod of tissue (notochord or backbone) running down their bodies.

Chordates are divided into three major groups: tunicates, cephalochordates (see lancelet), and craniates (including all vertebrates).

A new chordate Yunnanozoon lividum, a cephalochordate, was found 1995 in Chengjiang, China. It is 525 million years old, and the first chordate recorded from the early Cambrian period.
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So did our family, the Chordates, which ranges from a half-inch fish in the swamps of Borneo to the truly leviathan 100-ton Blue Whale, with all the fishes, birds and mammals in between.
Animal families with most diversity also have largest range of body ... by Asian News International
The major body plans found in most modern animal groups, such as arthropods and chordates, were established by the Cambrian.
Evolution's evolution: Darwin's dangerous idea has adapted to modern ... by Ehrenberg, Rachel / Science News
We can say that if you go back to when chordates evolved, man's ancestor quite possibly looked not too different from the lancelet.
LIFE IS AN ANCIENT ANCHOVY; Sea creature is 'missing link' by Daily Record (Glasgow, Scotland)
 
 
 
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