Author:
Stewart,W.N.
Year:
1951
Title:
A new Pachytesta from the Berryville locality of southeastern Illinois.
Reference:
Stewart,W.N. (1951) A new Pachytesta from the Berryville locality of southeastern Illinois. American Midland Naturalist Vol. 46 # 3 P. 717- 742
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Genus Species Country(Region) From To
Monolete spore Monolete spore sp Illinois Middle Pennsylvanian Late Pennsylvanian
Pachytesta Pachytesta hexangulata sp. nov. Illinois Middle Pennsylvanian Late Pennsylvanian