References:
Deres, F. & Achéritéguy, J. (1980). Biostratigraphie des Nannoconides. Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine. 4: 1-53. gs
Distinguishing features: Quadriangular (height = width) with slightly concave outer walls
Taxonomy:
Farinacci & Howe catalog pages: N. donnatensis *
Distinguishing features: Quadriangular (height = width) with slightly concave outer walls
Search data:| Tags | nannolith-radiate, circular, cylindrical, hollow, CA: vacant, T-UNITS: T-prominent, |
| Metrics | Lith size: 10->15µm; Data source notes: original description Sources: original description |
Geological Range:
Last occurrence (top): within Albian Stage (100.50-112.95Ma, top in Albian stage). Data source: Perch-Nielsen 1985
First occurrence (base): within Albian Stage (100.50-112.95Ma, base in Albian stage). Data source: Perch-Nielsen 1985
Plot of occurrence data:
Deres, F. & Achéritéguy, J. (1980). Biostratigraphie des Nannoconides. Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine. 4: 1-53. gsReferences:
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Nannoconus donnatensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-9-2020
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