Nannotax3 - ntax_non_cocco - Chrysochromulina pelagica Nannotax3 - ntax_non_cocco - Chrysochromulina pelagica

Chrysochromulina pelagica

Classification: ntax_non_cocco -> Haptophytes -> Prymnesiales -> Chrysochromulinaceae -> Chrysochromulina -> affinity not established -> Chrysochromulina pelagica
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 pelagica Estep et al. 1984
taxonomic rank: Species
Basionym: Chrysochromulina pelagica Estep et al. 1984

Catalog entries: Chrysochromulina pelagica

Original description: Chloroplast containing cells, round, 6-10µm in diameter, with two equal flagella, 22-25 µm in length and a haptonema, longer than the flagella, in 20-25 coils in fixed specimens. Cell body enclosed within a two layered scale case. Inner layer scales round to slightly ovate, 0.8-1.2µm in diameter with a radial pattern divided into four quadrants on the proximal face, the distal face with a central random pattern surrounded by a radially patterned rim with a central, narrow, raised ridge. Outer layer scales with 6-8 µm long spines attached to cup shaped base scales by four arched struts. Strut surfaces covered with a delicate, random pattern. Spine base scales similar to underlayer plate scales but with a 0.2 µm high upturned rim with a circular pattern, to which the spine struts attach.

Type images:

Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within No known fossil record modern (0-0Ma, base in "Holocene" stage). Data source:


Estep, K. W., Davis, P. G., Hargraves, P. E. & Sieburth, J. M. (1984). Chloroplast containing microflagellates in natural populations of North Atlantic nanoplankton, their identification and distribution, including a description of five new species of Chrysochromulina (Prymnesiophyceae). Protistologica. 20: 613-634. gs


Chrysochromulina pelagica compiled by Jeremy R. Young viewed: 4-12-2023

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