Diacronema


Classification: ntax_non_cocco -> Haptophytes -> Pavlovales -> Pavlovaceae -> Diacronema
Sister taxa: Diacronema, Exanthemachrysis, Pavlova, Rebecca

Daughter taxa (time control age-window is: 0-800Ma)
Diacronema ennorea

Diacronema lutheri

Diacronema noctivaga

Diacronema virescens

Diacronema viridis

Diacronema vlkianum

Diacronema sp.
Specimens which cannot be assigned to established species

Taxonomy:

Citation: Diacronema Prauser 1958; emend. Green and Hibberd 1977
Rank: Genus
Type species: Diacronema vlkianum Prauser

Catalog entries: Diacronema


Morphology: Motile cells with two unequal flagella and a short haptonema. Longer anterior flagellum with fine non-tubular hairs and with or without of minute dense bodies; posterior flagellum some- times with a basal swelling and vestigial. Occasionally dense bodies on cell surface. A pit or canal penetrating the cell near the long anterior flagellum. Chloroplast single or double without a pyrenoid, sometimes with an eyespot located on the external face of the plastid. Non-motile cells with or without incomplete appendages. [revised diagnosis of Bendif et al. 2011]

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: Total of range of species in this database

References:

Green, J. C. & Hibberd, D. J. (1977). The ultrastructure and taxonomy of Diacronema vlkianum (Prymnesiophyceae) with special reference to the haptonema and flagellar apparatus. Journal of the Marine Biological Association of the United Kingdom. 57: 1125-1136. gs

Prauser, H. (1958). Diacronema vlkianum, eine neue Chrysomonade. Archiv für Protistenkunde. 103: 117-128. gs


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Diacronema compiled by Jeremy R. Young viewed: 13-6-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20146 Go to Archive.is to create a permanent copy of this page - citation notes



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