Chitinozoan response to the ‘Kellwasser events’: population dynamics and morphological deformities across the Frasnian–Famennian mass extinction
Tim De Backer,
James (Jed) E. Day,
Poul Emsbo
et al.
Abstract:Fossil (zoo)plankton dynamics during Devonian ocean‐anoxic and extinction events can shed light on the palaeoceanographic and geochemical processes that shaped the middle Palaeozoic biosphere. However, datasets on (Upper) Devonian marine palynology, illustrating such dynamics, remain underexplored. The type section of the Sweetland Creek Shale in Iowa (USA) offers a detailed conodont zonation for the upper Frasnian and across the Frasnian–Famennian boundary, records the Upper and Lower Kellwasser events and ha… Show more
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