Taxonomy:
Distinguishing features: Pontosphaera with central rea protruding above rim, marginal cycle of elongates pores and more irregular central part.
Farinacci & Howe catalog pages: D. longiforaminis *
Search data:Tags | LITHS: murolith, elliptical, CA: ca_conjunct, pores, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent, |
Metrics | Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): within Middle Miocene Sub-Epoch (11.62-15.97Ma, top in Serravallian stage). Data source: range of specimens illustrated here
First occurrence (base): within Early Miocene Sub-Epoch (15.97-23.03Ma, base in Aquitanian stage). Data source: range of specimens illustrated here
Plot of occurrence data:
Baldi-Beke, M. (1964). Untersuchungen an Coccolithophoriden aus dem Miozan des Mecsek-Gebirges. Magyar Allami Földtani Intezet Evi Jelentese. 1961(1): 161-173. gs de Kaenel, E. & Villa, G. (1996). Oligocene-Miocene calcareous nannofossil biostratigraphy and paleoeecology from the Iberian Abyssal Plain. Proceedings of the Ocean Drilling Program, Scientific Results. 149: 79-145. gs V O Müller, C. (1974c). Nannoplankton aus dem Mittel-Miozän von Walbersdorf (Burgenland). Senckenbergiana Lethaea. 55: 389-405. gs Perch-Nielsen, K. (1972b). Remarks on Late Cretaceous to Pleistocene coccoliths from the North Atlantic. Initial Reports of the Deep Sea Drilling Project. 12: 1003-1069. gs V OReferences:
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Pontosphaera longiforaminis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-1-2021
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