IBBEA 24401
INSTITUTO DE BIODIVERSIDAD Y BIOLOGIA EXPERIMENTAL Y APLICADA
Unidad Ejecutora - UE
artículos
Título:
Staurosira patagonica sp. nov., a new diatom (Bacillariophyta) from southern Argentina, with a discussion on the genus Staurosira Ehrenberg
Autor/es:
MAIDANA, N. I.; MORALES, E. A.; GARCÍA, MARÍA LUJÁN; ECTOR, LUC
Revista:
Nova Hedwigia Beihefte Series
Editorial:
Gebrüder Borntraeger Verlag
Referencias:
Lugar: Stuttgart; Año: 2017 vol. 146
ISSN:
0078-2238
Resumen:
We present a detailed morphological analysis by light and scanning electron microscopy ofStaurosira patagonica sp. nov. from quaternary sediments of Maar Magallanes and recent sediments of theshallow lake Laguna Toro, both in Santa Cruz Province, Argentinian Patagonia. While the valve outlineof this new taxon resembles Staurosira incerta, S. construens and Pseudostaurosira pseudoconstruens,it presents features (e.g., fl at valve surface, bifurcate volae and radiate striae) that set it apart from them.Staurosira patagonica sp. nov. is smaller than other small fragilarioids species. We also discuss the maincharacteristics of Staurosira, we provide a list of species currently included in it, and we propose severalnew combinations accordingly with current concepts of araphid diatom genera.
