Classification: ntax_cenozoic -> Coccolithales -> Coccolithaceae -> Solidopons -> Solidopons petrae
Sister taxa: S. petrae, S. sp.
- Theod84 pl06-01.JPG
- KPC Solidopons petrae.JPG
- Theod84 pl06-02.JPG
- Theod84 pl06-03.JPG
- Theod84 pl06-04.JPG
- Theod84 pl06-05.JPG
- Theod84 pl06-06.JPG
- Theod84 pl06-07.JPG
Citation: Solidopons petrae Theodoridis, 1984Rank: SpeciesTaxonomic discussion: This species is very rare but highly distinctive. Its range in the Indian Ocean (Young 1987) is similar to that recorded by Theodoridis (1984) in the Mediterranean. In the absence of electron micrographs it is difficult to be confident of the structure but in cross-polars the rim strongly resembles that of Coccolithus pelagicus, hence inclusion in the Coccolithaceae seems reasonable. The bridge is strongly birefringent, with inclined extinction.
Distinguishing features: Elliptical placolith with narrow rim and wide central-area spanned by disjunct transverse bridge.
Farinacci & Howe catalog pages: S. petrae *
Size: About 4 - 8 µm, based on illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes
|Tags||LITHS: placolith, elliptical, CA: bar, |
CSPH: equant, monomorphic, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
|Metrics||Lith size: 4->8µm; |
Last occurrence (top): within NN9 zone (9.53-10.55Ma, top in Tortonian stage). Data source: Young 1998
First occurrence (base): within NN3 zone (17.95-19.00Ma, base in Burdigalian stage). Data source: Young 1998
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
- Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
- Taxon plotted: Solidopons petrae, synonyms included - Solidopons petrae;
- See also space-time plot ::
Samples map :: Parent: Solidopons
Theodoridis, S. (1984). Calcareous nannofossil biostratigraphy of the Miocene and revision of the helicoliths and discoasters. Utrecht Micropaleontological Bulletin. 32: 1-271. gs V O
Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 225-265. gs V O