The vertebrate body plan emerged in concert with extensive changes to anterior chordate morphology, including assembly of a craniofacial skeleton, expansion of the anterior neuroepithelium into a ...
Half-billion-year-old fossil of strange Cambrian creature gives evolutionary clues about vertebrates
The fossil of an ancient sea squirt found in a collection at the Utah Museum of Natural History turned out to be the oldest of its kind. When you purchase through links on our site, we may earn an ...
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