Axopodorhabdus dietzmannii
Set number: 2742
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Set number: 2741
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Set number: 2740
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Set number: 2739
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Set number: 2738
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Ahmuellerella dietzmannii Reinhardt, 1965
Podorhabdus septentrionalis Black, 1971a
The distal shield is in constant extinction because the optic axis (c-axis) is perpendicular to the microscope stage, whereas the proximal shield and the tube cycle exhibit interference colours with inclined extinction.
The elliptical-to-oblong placolith consists of a distal plate composed of non-imbricated segments, a proximal shield, and a tube cycle supporting an axial cross with a hollow distal process.
Black, M. 1971a. Coccoliths of the Speeton Clay and Sutterby Marl. Proceedings of the Yorkshire Geological Society 38: 381-424.
Reinhardt, P. 1965. Neue Familien für fossile Kalkflagellaten (Coccolithophoriden, Coccolithineen). Monatsberichte der Deutschen Akademie der Wissenschaften zu Berlin. 7: 30-40.
Wise, S. W. & Wind, F. H. 1977. Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36: 269-491.
Wind, F. H. & Wise, S. W. 1983. Correlation of upper Campanian-lower Maastrichtian calcareous nannofossil assemblages in drill and piston cores from the Falkland Plateau, southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 71: 551-563.
Holotype
Ahmuellerella dietzmannii
Cenomanian
Schlieven Drilling, Germany