Calciodinellum Deflandre, 1947
Holotype species: Calciodinellum operosum Deflandre
Original publication and holotype designation: Deflandre, G. (1947). Calciodinellum nov. gen., premier représentant d'une famille nouvelle de Dinoflagellés fossiles à thèque calcaire. Compte Rendu Hebdomadaire des Séances de l’Académie des Sciences. Paris. 224: 1781-1782.
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Elbrächter, M., Gottschling, M., Hildebrand-Habel, T., Keupp, H., Kohring, R., Lewis, J., Meier, K.J.S., Montresor, M., Streng, M., Versteegh, G.J.M., Willems, H. & Zonneveld, K. (2008). Establishing an agenda for calcareous dinoflagellate research (Thoracosphaeraceae, Dinophyceae) including a nomenclatural synopsis of generic names. Taxon 57(4): 1289-1303.
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: Described as fossil from the Upper Miocene of El Mehdi, Algeria, this calcareous cyst (30-40 µm diameter) has been found in recent sediments and plankton traps. The vegetative cell hatched from these cysts have a morphology and tabulation identical to that of species of the genus Scrippsiella Balech ex Loeblich III, see there. The cysts are spherical, with a calcareous layer that completely dissolve after treatment with hydrochloric acid. The calcareous layer is composed of small crystals arranged to form a spongy-reticulate structure. Rod-shaped crystals are arranged like a fence marking the peridinoid paratabulation. In culture, cysts were produced by vegetative cells in the postexponentional phase. Chloroplasts present. Vegetative cells more or less globular with a cellulosic cell wall of plates; plate formula Po,X,4',3a,7",6c,5s,5"',2"". Habitat : Recent sediments and in the plankton of the Mediterranean Sea, the Atlantic and Pacific Ocean; as fossil from the Holocene, Miocene and Pleistocene.
Information contributed by: M. Elbrächter. The most recent alteration to this page was made on 23 May 2017 by M.D. Guiry.
Numbers of names and species: There are 5 species names in the database at present, of which 3 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.
Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
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: 23 May 2017 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=44621
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 27 November 2020.