Author:
Taylor,T.N.
Year:
1965
Title:
Paleozoic seed studies.
Reference:
Taylor,T.N. (1965) Paleozoic seed studies. Pal¤eontographica Abteilung B Vol. 117 # 1 P. 1- 46
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Genus Species Country(Region) From To
Pachytesta Pachytesta gigantea Illinois Middle Pennsylvanian
Pachytesta Pachytesta hexangulata Illinois Late Pennsylvanian
Pachytesta Pachytesta vera Illinois Middle Pennsylvanian