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/main database link: Prymnesium annuliferum Billard 1983
Compiled data
Original Description
Cellulae elongatae (10-14 x 6.5 μm) non aplanatae et non metabolae cum anterio parte oblique truncata. Chromatophora 2 parietalia magna aurea aurea lobataque occupantia dimidium superum cellulae cum pyrenoidibus internis satis visibilibus. Appendices antice subapicales, flagella 2 heterodynamica plus minusve inaequalia (19 et 20- 22 μm) haptonemaque flexile (5-6 μ,m). Motus natantes idem ac is Prymnesium zebrini. Cellulae obtectae corporibus muciferibus et typis squamarum 2 velatae. Squamae proximales applanatae (c. 0.49 x 0.4 μm) stratis 1-2 cum ornamentis isdem ac eis Prymnesium parvi Cortex externus constatus ex strato squamarum elongatarum (c. 0.53 x 0.39 μm): aspectus proximalis cum ornamento eodem ac eo aspectus proximalis squamarum applanatarum; aspectus distalis ferens seriem 2-3 annulorum concentricorum (0.07 μm altorum omnium), annulo externo formanti marginem squamae, annulo ultimo deminuto ad delineationem semicircularem vel interrupto in 1-2 frusta centralia. Cystae desunt.
Etymology:
Billard, C. (1983). Prymnesium zebrinum sp. nov. et P. annuliferum sp. nov., deux nouvelles espèces apparentées à P. parvum Carter (Prymnesiophyceae). Phycologia. 22: 141-151. gsReferences:
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Prymnesium annuliferum: Catalog entry compiled by Jeremy Young. Viewed: 17-2-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=54761 Go to Archive.is to create a permanent copy of this page - citation notes |
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