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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

Sphenopteris maakiana (Heer) Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 8. 1900

species valid

Archaeopteris fimbriata Nath. Bull. Geol. Inst. Univ. Upsala, 4(2 [8]): 154. Oct 1900

species unavailable

Pityospermum maakianum (Heer) Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 17. 1900

species valid

Sphenopteris murrayana (Brongn.) Nath. in Nansen Sci. Res. Norw. N. Polar Exp. 1893-1896, 1(Art. 3): 8. 1900

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