Taxonomy:
Catalog entries: Prymnesium radiatum
Original description: Cells, elongated, of irregular shape, tapered posteriorly with two apically inserted, subequal, homodynamic flagella and a non-coiling hapto- nema, about half the length of the cell and shorter than the flagella. Cells non-phagotrophic. Two golden chloroplasts with immersed pyrenoids, two short anterior lobes and two long posterior lobes. Puncta (muciferous vesicles) present between the chloroplast lobes. Cells colonial, with flagellar poles directed outwards and held together at their posterior ends by mucilage. Motile colonies rotate in a trembling fashion. Cell bodies covered by two layers of two types of organic scale; the inner type elliptical and the outer large and flowerpot-shaped. Only asexual reproduction known.
Type images:
Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in "Holocene" stage). Data source:
Sym, S. D., Pienaar, R. N., Edvardsen, B. & Egge, E. S. (2011). Fine structure and systematics of Prymnesium radiatum sp. nov. (Prymnesiophyceae) from False Bay and Franskraal, South Africa. European Journal of Phycology. 46(3): 229-248. gs References:
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Prymnesium radiatum compiled by Jeremy R. Young viewed: 16-5-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20527 Go to Archive.is to create a permanent copy of this page - citation notes |
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