Helladosphaera Kamptner, 1937
Holotype species: Helladosphaera cornifera (J.Schiller) Kamptner
Original publication:Kamptner, E. (1937). Neue und bemerkenswerte Coccolithineen aus dem Mittelmeer. Archiv für Protistenkunde 89: 279-316.
Type designated in Jordan, R.W., Cros, L. & Young, J.R. (2004). A revised classification scheme for living haptophytes. Micropaleontology 50(Suppl. 1): 55-79.
Taxonomic status: currently recognized as a distinct genus.
Comments: Following the recent observations that many holococcolithophores are phases in the life cycles of heterococcolithophores, the family Calyptrosphaeraceae is now known to be polyphyletic, so Jordan et al. (2005) recommend abandoning its use. However, until all or most holococcolith-bearing taxa can be transferred into other existing families, they consider it wise to keep them together. Heimdal (1997: 752) records this genus as a member of the Order Coccosphaerales, Family Calyptrosphaeraceae.
Numbers of names and species: There are 18 species names in the database at present, of which 4 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.
Norris, R.E. (1985). Indian Ocean nannoplankton. II. Holococcolithophorids (Calyptrosphaeraceae, Prymnesiophyceae) with a review of extant genera. Journal of Phycology 21: 619-641, 57 figs, 1 table.
Heimdal, B.R. (1996). Modern coccolithophorids. In: Identifying marine phytoplankton. (Tomas, C.R. Eds), pp. 731-834. San Diego: Academic Press.
Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
Created: 16 April 2003 by M.D. Guiry
Verified by: 23 September 2014 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=45624
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 28 October 2020.