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Abstract
We present the first palynological study of the La Deheza Formation in Paganzo Basin, San Juan Province, Argentina. A total of 18 samples were studied and 116 palynomorph species were recorded. A multivariate statistical (R) analysis confirmed the occurrence of three associations. Assemblages 1 (240 m), 2 (230 m) and 3 (220 m) were referred to biozones already registered in the Paganzo Basin, i.e. Raistrickia densa–Convolutispora muriornata (DM), Pakhapites fusus–Vittatina subsaccata (FS) and Lueckisporites–Weylandites (LW) biozones. These assemblages can be assigned a Pennsylvanian–Cisularian age based on previous stratigraphic records of the identified species.
Acknowledgements
Special thanks go to E. Coturel for her collaboration in the field and in the laboratory and to L. Palazzesi for his contribution performing the statistical analysis. Duncan McLean, an anonymous reviewer and the Editor are gratefully acknowledged for valuable comments and suggestions that helped to greatly improve the manuscript. This work was supported by research grants awarded by Agencia Nacional de Promoción Científica y Técnica (ANPCYT-PICT 32693, 1637 and PRESTAMO BID-PICT 2010 N°2196) and Consejo Nacional de Promoción Científica y Técnica CONICET (PIP 0585).
Additional information
Notes on contributors
M. Lucía Balarino
M. LUCIA BALARINO received her PhD in 2009 from the Universidad Nacional de La Plata, Argentina for a thesis on the Permian palynostratigraphy of the Claromecó Basin, Argentina. In 2010, she became a CONICET researcher at the Museo Argentino de Ciencias Naturales “B. Rivadavia”, Argentina. Since 2006, Lucia has been working on the Carboniferous and Permian palynology of the Chacoparaná, Paraná and Paganzo basins in Argentina and Uruguay.
Gustavo A. Correa
GUSTAVO A. CORREA is a researcher with the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) in Argentina. He received his PhD in 2012 from the Universidad Nacional, San Juan, Argentina. Gustavo's research interests are on the lithostratigraphy and palaeobotany of western Gonwana, in particular the Paganzo and Ischigualasto-Villa Unión basins.
Pedro R. Gutiérrez
PEDRO RAÚL GUTIÉRREZ received his PhD in 1989 from the University of Buenos Aires, Argentina for a thesis on the Late Carboniferous macrofloras and palynofloras of western Argentina. Since 1983, his research has been on Upper Palaeozoic palaeobotany and palynology. In 1990, Pedro became a permanent CONICET researcher. In 2000, he began work at the palynology laboratory of the Argentine Museum of Natural Sciences in Buenos Aires, working on Carboniferous and Permian material from Argentina and Uruguay. Recently, Pedro began work on the Middle Triassic of Mendoza Province. He served for 12 years on the editorial board of Ameghiniana, and for six years Pedro was a member of the Board of the Paleontological Association of Argentina (APA).
Bárbara Cariglino
BÁRBARA CARIGLINO is a CONICET Assistant Researcher at the Museo Argentino de Ciencias Naturales “B. Rivadavia”, Argentina. She received her PhD from the Universidad Nacional de La Plata, Argentina for a thesis on the Glossopteris flora from Santa Cruz Province, Argentina. Bárbara currently works on Carboniferous and Permian megafloras from Patagonia and western Argentina.
María L. Carrevedo
MARÍA L. CARREVEDO received her PhD in 2010 from the Universidad de Buenos Aires, Argentina. Between 2007 and 2011, she worked on the Carboniferous and Permian palynology of the Paganzo Basin, Argentina, and between 2012 and 2015 on a project on Holocene global change. María is currently a postdoctoral researcher at the Instituto de Ecologia y Biodiversidad (IEB) in Argentina.