Classification: Coccolithophores -> Braarudosphaerales -> Braarudosphaeraceae -> Pemma -> Pemma sp.
Sister taxa: P. basquense, P. bybelliae, P. papillatum, P. rotundum, P. stradneri, P. triquetra, P. uncinata, P. sp.,
- Bybell 1975 pl07 08.JPG
Citation: Pemma sp.Rank: Species
Distinguishing features: Specimens which cannot be assigned to any established species
Farinacci & Howe catalog pages:
The morphological data given here can be used on the advanced search page. See also these notes
|Metrics||Lith size: 0->0µm; |
Last occurrence (top): within NP21 zone (32.92-34.44Ma, top in Rupelian stage). Data source: same as genus
First occurrence (base): within NP14b subzone (46.29-47.84Ma, base in Lutetian stage). Data source: same as genus
Plot of occurrence data:
- Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
- Triangles indicate an event for which a precise placement has been suggested
- (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Pemma
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
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