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Abstract:

A new recent and fossil diatom species, Thalassiosira patagonica, found in lake and quaternary lacustrine sediment samples from Southern Argentina (Santa Cruz province), is described. Its main morphological features are the prominent central undulation of the valve, the lack of striae in the raised portion of the central area and the marginal fultoportulae with external peg-like or wing-like projections. On the basis of the ecological preferences of the associated diatom species, it is believed that this new diatom also prefers slightly brackish, nutrient rich and alkaline waters. Its relationship with other members of Thalassiosiraceae is discussed. © 1999 Taylor & Francis Group, LLC.

Registro:

Documento: Artículo
Título:THALASSIOSIRA PATAGONICA SP. NOV. (THALASSIOSIRACEAE, BACILLARIOPHYCEAE), A NEW LACUSTRINE CENTRIC DIATOM FROM SANTA CRUZ, ARGENTINA
Autor:Maidana, N.I.
Filiación:Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. 2, Buenos Aires, 1428, Argentina
Palabras clave:diatom; fossil; new species; Quaternary; Argentina; Thalassiosira patagonica
Año:1999
Volumen:14
Número:2
Página de inicio:323
Página de fin:329
DOI: http://dx.doi.org/10.1080/0269249X.1999.9705473
Título revista:Diatom Research
Título revista abreviado:Diatom Res.
ISSN:0269249X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0269249X_v14_n2_p323_Maidana

Referencias:

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  • Battarbee, R.W., Diatom Analysis (1986) Handbook of Holocene Palaeoecology and Palaeohydrology, pp. 527-570. , B. E. Berglund, ed., J. Wiley Sons Ltd., New York
  • Belcher, J.H., Swale, E.M.F., Notes on some small Thalassiosira species (Bacillariophyceae) from plankton of the lower Thames and other british estuaries (identified by transmission electron microscopy) (1986) British Phycologist Journal, 21, pp. 139-145
  • Häkansson, H., Mahood, A., Thalassiocyclus gen. Nov.: A new genus in the Bacillariophyceae with comparison to closely related genera (1993) Nova Hedwigia, 106, pp. 197-202. , Beiheft
  • Häkansson, H., Kling, H., Cyclotella agassizensis nov. Sp. and its relationship to C. quillensis Bailey and other Prairie Cyclotella species (1994) Diatom Research, 9, pp. 289-301
  • Hasle, G.R., Lange, C.B., Freshwater and brackish water Thalassiosira (Bacillariophyceae): Taxa with tangentially undulated valves (1989) Phycologia, 28, pp. 120-135
  • Hasle, G.R., Syvertsen, E.E., Marine diatoms (1996) Identifying Marine Diatoms and Dinoflagellates, pp. 5-384. , C. R. Tomas, ed., Academic Press, Inc
  • Lange, C.B., Syvertsen, E.E., Cyclotella littoralis sp. Nov. (Bacillariophyceae) and its relationships to C (1989) Striata and C. Stylorum. Nova Hedwigia, 48, pp. 341-356
  • Maid Ana, N.I., Corbella, H., Análisis preliminar de las asociaciones de diatomeas cuaternarias en un paleolago volcánico. Santa Cruz austral, Argentina (1997) VI Congresso Da Associagäo Brasileira De Estudos Do Quaternário.Curitiba, Brasil, pp. 336-340. , Resumos expandidos
  • Rivera, P., Koch, P., Contributions to the diatom flora of Chile II (1982) Proceedings of the 7Th International Diatom Symposium, pp. 279-298. , D. G. Mann, ed., O. Koeltz, Koenigstein
  • Ross, R., Cox, E.J., Karayeva, N.I., Mann, D.G., Paddock, T.B.B., Simonsen, R., Sims, P.A., An amended terminology for the siliceous components of the diatom cell. Nova Hedwigia (1979) Beiheft, 64, pp. 513-530
  • Round, F.E., Crawford, R.M., Mann, D.G., (1990) The Diatoms. Biology and Morphology of the Genera, p. 749. , Cambridge University Press, Cambridge
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  • Theriot, E., Kociolek, J.P., Two new pliocene species of Cyclostephanos (Bacillariophyceae) with comments of the classification of the freshwater Thalassiosiraceae (1986) Journal of Phycology, 22, pp. 121-128
  • Theriot, E., Serieyssol, K., Phylogenetic systematics as a guide to understanding features and potential morphological characters of the centric diatom family Thalassiosiraceae (1994) Diatom Research, 9, pp. 429-450

Citas:

---------- APA ----------
(1999) . THALASSIOSIRA PATAGONICA SP. NOV. (THALASSIOSIRACEAE, BACILLARIOPHYCEAE), A NEW LACUSTRINE CENTRIC DIATOM FROM SANTA CRUZ, ARGENTINA. Diatom Research, 14(2), 323-329.
http://dx.doi.org/10.1080/0269249X.1999.9705473
---------- CHICAGO ----------
Maidana, N.I. "THALASSIOSIRA PATAGONICA SP. NOV. (THALASSIOSIRACEAE, BACILLARIOPHYCEAE), A NEW LACUSTRINE CENTRIC DIATOM FROM SANTA CRUZ, ARGENTINA" . Diatom Research 14, no. 2 (1999) : 323-329.
http://dx.doi.org/10.1080/0269249X.1999.9705473
---------- MLA ----------
Maidana, N.I. "THALASSIOSIRA PATAGONICA SP. NOV. (THALASSIOSIRACEAE, BACILLARIOPHYCEAE), A NEW LACUSTRINE CENTRIC DIATOM FROM SANTA CRUZ, ARGENTINA" . Diatom Research, vol. 14, no. 2, 1999, pp. 323-329.
http://dx.doi.org/10.1080/0269249X.1999.9705473
---------- VANCOUVER ----------
Maidana, N.I. THALASSIOSIRA PATAGONICA SP. NOV. (THALASSIOSIRACEAE, BACILLARIOPHYCEAE), A NEW LACUSTRINE CENTRIC DIATOM FROM SANTA CRUZ, ARGENTINA. Diatom Res. 1999;14(2):323-329.
http://dx.doi.org/10.1080/0269249X.1999.9705473