Taxonomy:
Distinguishing features: Pemma with crenulate edges.
Farinacci & Howe catalog pages: M. basquensis * , P. angulatum * , P. balium * , M. altus * , M. basquensis crassus * , P. parisiense primordis [no catalog entry yet], M. parisiensis * , M. parisiensis major * , M. parisiensis parisiensis * , M. serratus * , M. procerus *
See also: Micrantholithus bulbosus - similar morphotype but with indentations rather than depressions;
Search data:Tags | LITHS: nannolith-radiate, pentagonal, CA: pores, CROSS-POLARS: T-prominent, |
Metrics | Lith size: 6->17µm; Segments: 5->5; Data source notes: lith size (diameter) from ODs & illustrated specimens |
Geological Range:
Last occurrence (top): within NP21 zone (32.92-34.44Ma, top in Rupelian stage). Data source: Dunkley Jones et al., 2009
First occurrence (base): within NP14b subzone (46.29-47.84Ma, base in Lutetian stage). Data source: [PRB rough estimate]
Plot of occurrence data:
Báldi-Beke, M. (1971). The Eocene nannoplankton of the Bakony Mountains, Hungary. Annales Instituti Geologici Publici Hungarici. 54(4): 13-38. gs Bouché, P. M. (1962a). Nannofossiles calcaires de Lutétien du Bassin de Paris. Revue de Micropaléontologie. 5: 75-103. gs Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs V O Bramlette, M. N. & Sullivan, F. R. (1961). Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology. 7(2): 129-188. gs Bukry, D. & Bramlette, M. N. (1969b). Some new and stratigraphically useful calcareous nannofossils of the Cenozoic. Tulane Studies in Geology. 7: 131-142. gs V O Bybell, L. M. & Gartner, S. (1972). Provincialism among mid-Eocene calcareous nannofossils. Micropaleontology. 18(319-336): -. gs Bybell, L. (1975). Middle Eocene calcareous nannofossils at Little Stave Creek, Alabama. Tulane Studies in Geology and Paleontology. 11(4): 177-247. gs V O Jones, A. P. & Dunkley Jones, T. (2020). Middle Eocene to Early Oligocene calcareous nannofossils from the Nanggulan Formation, Java, Indonesia. Journal of Nannoplankton Research. 30(1): 57-79. gs V O Martini, E. (1959c). Discoasteriden und verwandte Formen in NW-deutschen Eozän (Coccolithophorida). 2. Stratigraphische Auswertung. Senckenbergiana Lethaea. 40: 137-157. gs Perch-Nielsen, K. (1971c). Elektronenmikroskopische untersuchungen an Coccolithen und verwandten Formen aus dem Eozan von Danemark. Biologiske Skrifter, Kongelige Danske Videnskabernes Selskab. 18(3): 1-76. gs Self-Trail, J. (2011). Paleogene Calcareous Nannofossils of the South Dover Bridge core, Southern Maryland (USA). Journal of Nannoplankton Research. 32(1): 1-28. gs V O Varol, O. (1998). Palaeogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 200-224. gsReferences:
![]() |
Pemma basquense compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 1-3-2021
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1035 Go to Archive.is to create a permanent copy of this page - citation notes |