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Science 18 April 1969:
Vol. 164. no. 3877, pp. 294 - 295
DOI: 10.1126/science.164.3877.294
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Articles

Cycads: Evidence from the Upper Pennsylvanian

Thomas N. Taylor 1

1 Department of Biological Sciences, University of Illinois at Chicago Circle, Chicago 60680

The fossil record of true cycads is extended from the Upper Triassic to the upper PennsYlvanian.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Cataphylls of the Middle Triassic cycad Antarcticycas schopfii and new insights into cycad evolution.
E. J. Hermsen, T. N. Taylor, E. L. Taylor, and D. Wm. Stevenson (2006)
Am. J. Botany 93, 724-738
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Science. ISSN 0036-8075 (print), 1095-9203 (online)