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Science 17 September 1976:
Vol. 193. no. 4258, pp. 1128 - 1130
DOI: 10.1126/science.193.4258.1128
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Articles

Dinoflagellates: Fossil Motile-Stage Tests from the Upper Cretaceous of the Northern New Jersey Coastal Plain

FRED E. MAY 1

1 U.S. Geological Survey, Reston, Virginia 22092

Fossil dinoflagellate tests have been considered to represent encysted, nonmotile stages. The discovery of flagellar porelike structures and probable trichocyst pores in the Upper Cretaceous genus Dinogymnium suggests that motile stage tests are also preserved as acid-resistant, organic-walled microfossils.

Submitted on March 17, 1976
Revised on May 26, 1976

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