Nannotax3 - ntax_non_cocco - Chrysochromulina cyathophora Nannotax3 - ntax_non_cocco - Chrysochromulina cyathophora

Chrysochromulina cyathophora

Classification: ntax_non_cocco -> Haptophytes -> Prymnesiales -> Chrysochromulinaceae -> Chrysochromulina -> affinity not established -> Chrysochromulina cyathophora
Sister taxa: C. adriatica, C. ahrengotii, C. alifera, C. ephippium, C. pyramidosa ⟩⟨ C. cyathophora, C. megacylindra, C. microcylindra, C. pachycylindra ⟩⟨ C. apheles, C. discophora, C. elegans, C. lanceolata, C. latilepis, C. novae-zelandiae, C. orbiculata, C. pelagica, C. pontica, C. pseudolanceolata, C. quadrikonta, C. tenuispina, C. tenuisquama, C. vexillifera ⟩⟨ C. breviturrita, C. inornamenta, C. laurentiana


Citation: Chrysochromulina cyathophora Thomsen 1979
taxonomic rank: Species
Basionym: Chrysochromulina cyathophora Thomsen 1979

Catalog entries: Chrysochromulina cyathophora

Original description: Cell subspherical, c. 3.0 µm (2.9-3.3 µm) in diameter when dry; two flagella 10-12 µm long and a haptonema c. 7 µm long when extended. Scales of two kinds. Inner scales plate-like, circular, approximately 0.8 µm in diameter, with a pattern of concentric ridges on the distal surface (c. 10 per 0.1 µm). Outer scales cylindrical, almost straight-sided, diameter c. 0.2 µm , 0.5-1.1 µm long, and proximally attached to a base-plate. The proximal baseplate surface is indistinctly radially striated at the periphery. The thickness of the cylinder wall decreases abruptly about two thirds from the base.

Type images:

Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source:


Thomsen, H. A. (1979). Chrysochromulina cyathophora (Prymnesiophyceae), a new species from Danish coastal waters. Botaniska Notiser. 132: 71-76. gs


Chrysochromulina cyathophora compiled by Jeremy R. Young viewed: 18-7-2024

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