Nannotax3 - ntax_non_cocco - Chrysochromulina rotalis Nannotax3 - ntax_non_cocco - Chrysochromulina rotalis

Chrysochromulina rotalis

Classification: ntax_non_cocco -> Haptophytes -> Prymnesiales -> Chrysochromulinaceae -> Chrysochromulina -> definite Chrysochromulina -> Chrysochromulina rotalis
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 rotalis Eikrem and Throndsen 1999
Rank: Species
Basionym: Chrysochromulina rotalis Eikrem and Throndsen 1999

Catalog entries: Chrysochromulina rotalis

Original description: Cells saddle shaped measuring 4-6 µm with two chloroplasts. Two flagella, usually equal 8-18 pm. Haptonema 22-80 µm long, coiling. Periplast covered with dimorphic scales, in two layers; outer layer scales slightly elongate, 450-570 x 350-470 nm, with spine supported by four decurrent struts, spine approximately equalling the scale radius; inner layer scales slightly elongate, 400-550 x 320-460 nm, without protrusions. Proximal scale faces with concentric fibrils and distal faces with radiating ribs.

Type images:


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

Cultures: Strains of this species are maintained in culture, for details see Roscoff Culture Collection.

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:


Eikrem, W. & Throndsen, J. (1999). The morphology of Chrysochromulina rotalis sp. nov. (Prymnesiophyceae, Haptophyta), isolated from the Skagerrak. Sarsia. 84: 445-449. gs


Chrysochromulina rotalis compiled by Jeremy R. Young viewed: 1-6-2023

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