Nannotax3 - ntax_Farinacci - Chrysochromulina orbiculata Nannotax3 - ntax_Farinacci - Chrysochromulina orbiculata

CATALOG - Chrysochromulina orbiculata


Folder trail: ntax_Farinacci -> Haptophytes -> Chrysochromulina -> Chrysochromulina orbiculata
Folders this level: << < C. herdlensis, C. hirta, C. inornamenta, C. kappa, C. lanceolata, C. latilepis, C. laurentiana, C. leadbeateri, C. limonia, C. mactra, C. mantoniae, C. megacylindra, C. microcylindra, C. minor, C. novae-zelandiae, C. orbiculata, C. pachycylindra, C. papillata, C. parkeae, C. parva, C. pelagica, C. planisquama, C. polylepis, C. pontica, C. pringsheimii, C. pseudolanceolata, C. pyramidosa, C. quadrikonta, C. rotalis, C. scutellum, C. simplex> >>

Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
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Current identification/main database link: Chrysochromulina orbiculata Rouchijajnen 1972

Compiled data

Citation: Chrysochromulina orbiculata Rouchijajnen 1972
Taxonomic rank: species
Farinacci catalog page (& compiler): n/a
Current citation: Chrysochromulina orbiculata Rouchijajnen 1972


Original Description

Cellula dolioliformis ad sphaericam, sectione transversali rotunda, 3.6-6.7 Х 3.6-7.2 µm, flagellis duobus homodynamicis tenuissimis, cellula 1.5-2.5-plo longioribus, 7-15 р. longis. Haptonema 1/2-3/4 flagelli longitudinis sistens, 5-12 р. longum. Chromatophori 2-4. Nucleus in parte cellulae anteriore situs.

Cell dolioliform to spherical, in round cross-section, 3.6-6.7 X 3.6-7.2 µm, with two very thin homodynamic flagella, cell 1.5-2.5-fold longer, 7-15 p. long. Haptonema 1/2-3/4 of the length of the flagellum, 5-12 µm long. Chromatophores 2-4. Nucleus in the anterior part of the cell. [google translate Aug 2025]

Extra details from original publication
Species Ch. ponticae Rouch.is  similar, but the cell is not dorsiventrally compressed, number of chromatophores indefinite, relative dimensions of haptonema and flagella differs.

References:

Rouchijainen, M. I. (1972). Flagellatae marium australium nova. Novitates Systematicae Plantarum Non Vascularium. 9: 11-17. gs


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Chrysochromulina orbiculata: Catalog entry compiled by Jeremy Young. Viewed: 9-12-2025

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=54712 Go to Archive.is to create a permanent copy of this page - citation notes

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