Pachydinium Pavillard, 1915

Holotype species: Pachydinium mediterraneum Pavillard

Original publication and holotype designation: Pavillard, J. (1915). Péridiniens nouveaux du Golf du Lion. Comptes Rendus Hebdomaires des Séances et Mémoires de la Société de Biologie 1915(78): 120-122.

Fossil: This is a genus of fossil species, or a genus with a fossil type species, or a genus the type species of which was originally described as a fossil.

Description: Large (about 100µm long) ovoid biflagellate heterodynamic cells with a cell wall of cellulosic plates. Plate formula Po, 3', 5", ?c, ?s, 5"', 3"", according to its author, although thecal plate sutures were very difficult to establish. Rampi (1952) gave the same plate formula but added information on two sulcal plates. This genus needs reinvestigation, some authors regard it as congeneric with Protoceratium Bergh. No information on cell content (chloroplasts?) available. Habitat: Marine plankton of warm waters, mainly recorded from the Mediterranean Sea

Information contributed by: M. Elbrächter. The most recent alteration to this page was made on 2024-03-03 by E.A. Molinari Novoa.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as neuter.

Most recent taxonomic treatment adopted: Sournia, A. (1986). Atlas du phytoplancton marin. Volume I: Cyanophycées, Dictyophycées, Dinophycées, Raphidophycées. pp. [1]-219. Paris: Éditions du Centre National de la Recherche Scientifique 15, quai Anatole France - 75700 Paris.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=44667

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 03 March 2024. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 April 2024