181,134 species and infraspecific names are in the database, 23,920 images, 74,792 bibliographic items, 603,884 distributional records.

Gyrodinium obtusum (Schütt) Kofoid & Swezy 1921

Publication details
Gyrodinium obtusum (Schütt) Kofoid & Swezy 1921: 319, fig. DD: 3; pl. 9: fig. 103

Published in: Kofoid, C.A. & Swezy, O. (1921). The free-living unarmored Dinoflagellata. Memoirs of the University of California 5: i-viii, 1-562.
 Download PDF

Original description:  Download PDF

Type species
The type species (holotype) of the genus Gyrodinium is Gyrodinium spirale (Bergh) Kofoid & Swezy.

Status of name
This name is of an entity that is currently accepted taxonomically.

Basionym
Gymnodinium spirale var. obtusum Schütt

Origin of species name
Adjective (Latin), obtuse, blunt (Stearn 1983).

Homotypic Synonym(s)
Gymnodinium spirale var. obtusum Schütt 1895

Heterotypic Synonym(s)
Spirodinium spirale var. obtusum Lemmermann 1899

General environment
This is a marine species.

Detailed distribution with sources (Click to Load)

Key references
Daugbjerg, N., Hansen, G., Larsen, J. & Moestrup, Ø. (2000). Phylogeny of some of the major genera of dinoflagellates based on ultrastructure and partial LSU rDNA sequence data, including the erection of three new genera of unarmoured dinoflagellates. Phycologia 39: 302-317.

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

Schiller, J. (1933). Dinoflagellatae (Peridineae) in monographischer behandlung.. In: Dr. L. Rabenhosrst's Kryptogamen-Flora von Deutschland, Österreich und der Schweiz, 2. Aufl. 10. Bd 3. Abt. 1 Teil. (Kolkwitz, R. Eds), pp. 433-617. Leipzig: Akademische Verlagsgesellschaft M.B.H.

Created: 07 May 2002 by M.D. Guiry

Verified by: 31 January 2025 by M.D. Guiry

Accesses: This record has been accessed by users 448 times since it was created.

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

Linking to this page: http://admin.algaebase.org/search/species/detail/?species_id=52406

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2025. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 26 July 2025.

SITE © 1996 - 2025 M.D. Guiry. All rights reserved.

Website Design : 249 Design Studio

×