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1 record found in the Index Nominum Genericorum database.

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Diacritical Conversion

Ptychoxylon B. Renault, Compt. Rend. Hebd. Séances Acad. Sci. 108: 1074. 1889 (post 20 Mai).
T.: P. levyi B. Renault (Études Gîtes Minéraux France, Bassin Houiller Perm. Autun Épinac, Atlas t. 69. 1893)
Stem; Upper Carboniferous; Champ des Borgis, France.
FOSSIL-GYMNOSPERMAE-CYCADALES (81) 9 Feb 1996

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