Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
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Current identification:
Compiled data
Original Description
Description: Orthopithonelloid calcareous dinoflagellate cysts having a subspherical endocoel and shape. The crystals within the "unidirectional areas" (areas in which all crystals have the same orientation) are arranged in parallel rows. On the cyst surface, these crystals may have a rod like appearance. In each row the long sides of these "rods" have a parallel orientation. Along the borders of the unidirectional areas these rows may be broken down and a random crystal orientation may be observed. On cross-section the single layered cyst wall shows a dense structure of randomly orientated, often plate-like, crystals
Size:
Etymology:
Extra details from original publication
Comparison: This form differs from all other described calcareous dinoflagellate cysts by its pseudopithonelloid surface structure.
Versteegh, G. J. M. (1993). New Pliocene and Pleistocene calcareous dinoflagellate cysts from Southern Italy and Crete. Review of Palaeobotany and Palynology. 78: 353-380. gsReferences:
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Pseudopithonella striatula: Catalog entry compiled by <% compiler %>. Viewed: 14-6-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=55612 Go to Archive.is to create a permanent copy of this page - citation notes |
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