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Year
Total: 4
supragenus
valid
Family
Baragwanathiaceae
F. Maek.
J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot., 6(1-3):
21.
30 Mar 1952
supragenus
valid
Subclass
Cordaitidae
F. Maek.
J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot., 6(1-3):
21.
30 Mar 1952
supragenus
valid
Subclass
Protopteridiidae
F. Maek.
J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot., 6(1-3):
21.
30 Mar 1952
supragenus
valid
Subclass
Psilophytidae
F. Maek.
J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot., 6(1-3):
20-21.
30 Mar 1952
