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Science 4 June 2004:
Vol. 304. no. 5676, p. 1425
DOI: 10.1126/science.304.5676.1425a
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News of the Week

PALEONTOLOGY:
Controversial Fossil Could Shed Light on Early Animals' Blueprint

Erik Stokstad

Researchers describe online this week in Science (www.sciencemag.org/cgi/content/abstract/1099213) the oldest known fossil of a "bilaterian" animal. But other experts suspect that the microscopic specimens might not be fossils at all.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)