163,897 species and infraspecific names are in the database, 22,783 images, 63,099 bibliographic items, 481,371 distributional records.

Actinocyclus trapeziformis (Rubina) Rubina & Khursevich 1990

Publication details
Actinocyclus trapeziformis (Rubina) Rubina & Khursevich 1990: 1565, pl. 1, figs 1, 6

Published in: Rubina, N.V. & Khursevich, G.K. (1990). [New representatives of the genus Actinocyclus (Bacillariophyta) from the late Oligocene of the western Siberia]. Botanicheskii Zhurnal 75(11): 1565-1567, 2 pls. [in Russian]

Type species
The type species (lectotype) of the genus Actinocyclus is Actinocyclus octonarius Ehrenberg.

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

Coscinodiscus trapeziformis Rubina

Type information
Type locality: W. Siberia: Tyumenskaya distr.: river Ob, Curgut (upper Oligocene) (Index Nominum Algarum).

Described as a fossil.

Homotypic Synonym(s)
Coscinodiscus trapeziformis Rubina 1967

General environment
This is a marine species.

No distributions recorded
No distributional records for this taxon have been recorded by AlgaeBase to date. Generally, recent national lists or extensive regional or state lists have been employed to give a general indication of distribution.

Key references
Hayashi, T., Saito-Kato, M. & Tanimura, Y. (2012). Actinocyclus nipponicus sp. nov. and A. bradburyii sp. nov. (Bacillariophyta) from Miocene lacustrine sediments of the proto-Japn Sea. Phycologia 51(1): 98-112.

Created: 01 March 2012 by G.M. Guiry

Verified by: 12 March 2018 by M.D. Guiry

Accesses: This record has been accessed by users 298 times since it was created.

Verification of data
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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=142574

Citing AlgaeBase
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 21 October 2021.

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