by Geoffrey Playford
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Late devonian acritarchs from the Carnar...
Lower carboniferous spores from the Bona...
Organic-walled microphytoplankton of the...
Spores from a carboniferous section in t...
Lower to Middle Devonian acritarchs of t...
Miospores from the Mississippian Horton ...
An annotated bibliographic and geographi...
The acritarchs and Chitinozoa from the W...
Uppermost Cambrian and Lower Ordovician ...
Middle and Upper Cambrian acritarch and ...
Paleobiology of the Neoproterozoic Svanb...