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. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences 224(25): 1781-1782, 6 figures.
Request PDFFossil: 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 2023-01-23 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: 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.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=44621
Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 23 January 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024
