Isochrysis maritima

Classification: ntax_cenozoic -> Isochrysidales -> Isochrysidaceae -> Isochrysis -> Isochrysis maritima
Sister taxa: I. galbana, I. litoralis, I. maritima, I. nuda


Citation: Isochrysis maritima Billard & Gayral 1972
Rank: Species

Original description: Young cells non-motile, hemispherical (3 x 6 µm) forming cubic masses; older cells spherical (6 x 7 µm)surrounded by concentric pectic envelopes; two parietal yellow-green chromatophores present; one intraplastidial pyrenoid per chromatophore. Asexual reproduction by division of the non-motile cells and by production of elongated metabolic swarmers (3 x 4.5-5 µm) with two apical subequal (6 and 8 µm) homodynamic flagella; movement of the cells generally in a backward direction; a single chromatophore and a stigma. Cells covered with one layer of subcircular plate scales (0.16 x 0.14 µm) with a thickened margin and radiating ridges.

Type images:

Farinacci & Howe catalog pages: Isochrysis maritima

Search data:
MetricsLith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

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

Plot of occurrence data:


Billard, C. & Gayral, P. (1972). Two new species of Isochrysis with remarks on the genus Ruttnera. British Phycological Journal. 7(289-297): -. gs V O


Isochrysis maritima compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 19-4-2021

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