162,486 species and infraspecific names are in the database, 22,763 images, 64,028 bibliographic items, 475,219 distributional records.

Thecadinium Kofoid & Skogsberg, 1928

Classification:
Empire Eukaryota
Kingdom Chromista
Subkingdom Harosa (supergroup SAR)
Infrakingdom Halvaria
Phylum Miozoa
Subphylum Myzozoa
Infraphylum Dinozoa
Superclass Dinoflagellata
Class Dinophyceae
Order Peridiniales
Family Thecadiniaceae

Lectotype species: Thecadinium petasatum Kofoid & Skogsberg

Currently accepted name for the type species: Thecadinium kofoidii (Herdman) J.Schiller

Original publication:Kofoid, C.A. & Skogsberg, T. (1928). Reports on the scientific results of the expedition to the Eastern Tropical Pacific, in charge of Alexander Agassiz, by the U.S. Fish Commission Steamer "Albatross" from October 1904 to March 1905, Lieut. Commander L.M. Garrett, U.S.N., Commanding. [No.] XXXV. The Dinoflagellata: the Dinophysoidae. Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass. 51: 1-766.
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Type designated in Balech, E. (1956). Étude des Dinoflagellés du sable de Roscoff. Revue Algologique, Nouvelle Serie 2: 29-52.

Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Moestrup, Ø. & Calado, A.J. (2018). Süßwasserflora von Mitteleuropa. Freshwater Flora of Central Europe, Volume 6: Dinophyceae. pp. [i]-xii, [1]-560, 421 figs. Berlin: Springer Spektrum.

Nomenclatural notes
Generitype: Thecadinium kofoidii (Herdman) Larsen (Hoppenrath, 2000: 97). - (6 Apr 2018) - Wendy Guiry

Description: Small to medium-sized (20-45µm) species, laterally compressed with small epicone and a large hypocone, mainly enclosed by 2 large hypothecal plates. Nucleus elongated in the dorsal part of the hypocone; numerous trichocysts and mucocysts present, with numerous elongated chloroplasts, radiating from a pyrenoid. Plate formula of the type species: Po, 3', 1a, 4" 5c, ?s, 3"' 1"", other species described with 5'". Sexual reproduction and cyst formation not known. Emend. Selina & Hoppenrath (2019: 40).

Information contributed by: M. Elbrächter. The most recent alteration to this page was made on 8 May 2019 by Wendy Guiry.

Comments: Marine, sand-dwelling, rarely washed into coastal plankton.

Numbers of names and species: There are 21 species names in the database at present, of which 9 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

Click here to also show infraspecific names in the list below.

References
Dodge, J.D. (1982). Marine dinoflagellates of the British Isles. pp. 1-303, 35 figs, pls I-VIII. London: Her Majesty's Stationery Office.

Steidinger, K.A. & Tangen, K. (1996). Dinoflagellates. In: Identifying Marine Phytoplankton. (Tomas, C.R. Eds), pp. 387-584. San Diego: Academic Press.

Hoppenrath, M. (2000). Morphology and taxonomy of the marine sand-dwelling genus Thecadinium (Dinophyceae), with the description of two new species from the North German Wadden Sea. Phycologia 39: 96-108, 69 figs, 6 tables.

Selina, M.S., Efimova, K.V. & Hoppenrath, M. (2019). Redefinition of the genus Thecadinium (Dinophyceae) using morphological and molecular data, and description of Thecadinium pseudokofoidii sp. nov.. Phycologia 58(1): 36-50.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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.

Created: 07 May 2002 by M.D. Guiry

Verified by: 27 September 2018 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=44696

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 04 August 2021.

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