Ginkgophyton (Psygmophyllum) with a Stem of Gymnospermic Structure

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Science  02 Aug 1963:
Vol. 141, Issue 3579, pp. 431-433
DOI: 10.1126/science.141.3579.431


A specimen identified as Ginkgophyton (Psygmophyllum) with a structurally preserved stem of gymnospermic organization has been collected from a late Devonian stratum in New York.

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