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1 record found in the Index Nominum Genericorum database.

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Diacritical Conversion

Williamsoniella H. H. Thomas, Philos. Trans., Ser. B. 207: 136, 144. 14 Dec 1915.
T.: non designatus
Fertile shoots; Middle Jurassic; Gristhorpe Bay, Yorkshire, England.
FOSSIL-GYMNOSPERMAE-BENNETTITALES (104) 9 Feb 1996

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