Author:
Baxter,R.W.
Year:
1972
Title:
A Heterosporous fern from the Middle Pennsylvanian of Kansas
Reference:
Baxter,R.W. (1972) A Heterosporous fern from the Middle Pennsylvanian of Kansas American Journal of Botany Vol. 59 # 6 P. 659- 659
Google Academy:
try to search by title in english
Genus Species Country(Region) From To
Megaspore Megaspore Kansas Middle Pennsylvanian