Stephanocyclus
Skabitschevsky 1975 Category: Centric
TYPE SPECIES: Stephanocyclus planus Skabitschevsky
CLASS: Coscinodiscophyceae
ORDER: Thalassiosirales
FAMILY:
- Cell wall comprised of a single layer
- Marginal chambers absent
Stephanocyclus differs from Cyclotella by the absence of a two-layered valve wall. Stephanocyclus differs from Cyclostephanos by the absence of marginal chambers.
Stephanocyclus contains species that were included with Cyclotella meneghiniana and its allies, including C. caspia, and C. quillensis. Many Stephanocyclus species, however, have not been formally transferred.
Stephanocyclus species are widely distributed in alkaline and saline inland waters.
Cite This Page:
Spaulding, S., and Edlund, M. (2009). Stephanocyclus. In Diatoms of the United States. Retrieved May 19, 2013, from http://westerndiatoms.colorado.edu/taxa/genus/Stephanocyclus
Contributor: Sarah Spaulding | Mark Edlund - January 2009
Citations
Fritz, S.C., Engstrom, D.R. and Haskell, B.J. (1994). Little Ice Age aridity in the North American Great Plains: a high-resolution reconstruction of salinity fluctuations from Devils Lake, North Dakota, USA. The Holocene 4: 69-73.
Gasse, F., Barker, P., Gell, P.A., Fritz, S.C. and Chalie, F. (1997). Diatom-inferred salinity in palaeolakes: An indirect tracer of climate change. Quaternary Science Reviews 16: 547-563.
Stoermer, E.F. and Julius, M.L. (2003). Centric Diatoms. In: Freshwater Algae of North America (J.D. Wehr and R.G. Sheath, eds) Elsevier Science pp. 559-594.
Tanaka, H. (2007). Taxonomic studies of the genera Cyclotella (Kützing) Brébisson, Discostella Houk et Klee, and Puncticulata Håkansoon in the family Stephanodiscaceae Glezer et Makarova (Bacilariophyta) in Japan. Bibliotheca Diatomologica 53: 1-205.
Wunsam, S., Schmidt, R. and Klee, R. (1995). Cyclotella-taxa (Bacillariophyceae) in lakes of the Alpine region and their relationship to environmental variables. Aquatic Sciences 57: 360-386.