Author:
Pettitt,J.M.
Year:
1969
Title:
Heterospory and the Rise of the seed Habit.
Reference:
Pettitt,J.M. (1969) Heterospory and the Rise of the seed Habit. International Botanical Congress, 11th, Abstracts of Papers, Seattle,Washington P. 168- 168
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Genus Species Country(Region) From To
Archaeosperma Archaeosperma arnoldii Nd Famennian
Cystosporites Cystosporites Nd Famennian
Cystosporites Cystosporites Nd Tournaisian
Cystosporites Cystosporites devonicus Nd Frasnian