Nannotax3 - ntax_non_cocco - Chrysochromulina simplex

Chrysochromulina simplex

Classification: ntax_non_cocco -> Haptophytes -> Prymnesiales -> Chrysochromulinaceae -> Chrysochromulina -> definite Chrysochromulina -> Chrysochromulina simplex
Sister taxa: C. acantha, C. andersonii, C. camella, C. campanulifera, C. cymbium, C. leadbeateri, C. parva, C. rotalis, C. scutellum, C. simplex, C. strobilus, C. throndsenii


Citation: Chrysochromulina simplex Estep et al. 1984; emend. Birkhead and Pienaar 1995
Rank: Species
Basionym: Chrysochromulina simplex Estep et al. 1984; emend. Birkhead and Pienaar 1995

Catalog entries: Chrysochromulina simplex

Original description: Chloroplast containing cells, 2.0-6.0 um in diameter possibly up to twice as large when living, with two equal flagella 9-27 um in length, and a haptonema much Ionger than the flagella, in 18-30 coils when fixed. Cell body covered by a single, slightly ovate scale type, 0.4-1.0 um in diameter and quite variable in size, both within and beween individuals. Proximal scale surface with a simple radial pattern, ca. 36 lines per scale in small scales, up to 270 in larger scales. Distal face with a concentric pattern. Some scales in some individuals with one or two small, circular to ovate dimples near the center of the scale on both scale faces.

Type images:


Cell saddle shaped; Flagella equal, haptonema much longer; Scales plate-like with radial ribs on proximal face, concentric fibrils on distal face; Pyrenoids immersed, traversed by tubules (Edvardsen et al. 2011)


In culture: chrysochromulinasimplex

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:


Birkhead, M. & Pienaar, R. N. (1995b). The taxonomy and ultrastructure of Chrysochromulina simplex (Prymnesiophyceae). Phycologia. 34: 145-156. gs

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 V O


Chrysochromulina simplex compiled by Jeremy R. Young viewed: 27-9-2022

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