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Total: 336

species unavailable

Pteridorachis punctulata Nath. Kongl. Svenska Vetensk. Acad. Handl., 36(3): 12. 26 Aug 1902

species valid

Sphenophyllum subtenerrimum Nath. Kongl. Svenska Vetensk. Acad. Handl., 36(3): 23. 26 Aug 1902

species unavailable

Cephalotheca major Nath. Kongl. Svenska Vetensk. Acad. Handl., 36(3): 17. 26 Aug 1902

species valid

Rhizomopteris nordenskioeldii Nath. Kongl. Svenska Vetensk. Acad. Handl., 36(3): 10. 26 Aug 1902

species unavailable

Cephalotheca mirabilis Nath. Kongl. Svenska Vetensk. Acad. Handl., 36(3): 15. 26 Aug 1902

species valid

Archaeopteris intermedia Nath. Kongl. Svenska Vetensk. Acad. Handl., 36(3): 18. 26 Aug 1902

species valid

Lyginodendron sverdrupii Nath. Rept. Sec. Norweg. Arct. Exped. "Fram", 1898-1902, 1(1): 11. Aug 1904

species valid

Pityolepis tollii Nath. Zap. Imp. Akad. Nauk Fiz.-Mat. Otd., 21(2): 8. Mar 1907

species valid

Cephalopteris affinis Nath. Bull. Geol. Inst. Univ. Upsala, 10(19-20): 277. 1910

species valid

Cephalopteris mirabilis Nath. Bull. Geol. Inst. Univ. Upsala, 10(19-20): 277. 1910

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