| details |
Strunian |
Early Tournaisian |
Canada(Saskatchewan) |
Playford,G. et al. Miospores and organic-walled microphytoplankton of Devonian-Carboniferous boundary beds, (Bakken Formation), southern Saskatchewan: A systematic and stratigraphic appraisal. |
1993 |
| details |
Early Mississippian |
|
Canada(Alberta) |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Nd |
|
Nd |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Late Famennian |
|
Belgium |
Maziane,N. et al. Acritarchs from the Uppermost Famennian at Chanzhe and Tohogne, (Eastern Belgium). (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |
| details |
Early Chesterian |
|
Alabama |
Zhou,Y.-Z. et al. Early Chesterian spores from northwestern Alabama, U.S.A. |
2001 |