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Total: 3
genus
unavailable
Genus
Nematophyllum
Fontaine, I.C. White
Sec. Geol. Surv. Pennsylvania Rept. Progr., PP:
35.
Jun 1880
genus
unavailable
Genus
Pecopteridium
Fontaine, I.C. White
Sec. Geol. Surv. Pennsylvania Rept. Progr., PP:
61.
Jun 1880
genus
valid
Genus
Saportaea
Fontaine, I.C. White
Sec. Geol. Surv. Pennsylvania Rept. Progr., PP:
99.
Jun 1880
