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1 record found in the Index Nominum Genericorum database.

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Diacritical Conversion

Physostoma Williamson, Nature 12: 442. 16 Sep 1875.
T.: P. elegans Williamson (Rep. Brit. Assoc. Advancem. Sci. 45(2): 160. 1876)
Seed; Lower Carboniferous; Lancashire, England.
FOSSIL-GYMNOSPERMAE-PTERIDOSPERMOPHYTA (104) 9 Feb 1996

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