Microfósiles Calcáreos No Marinos y Semillas de la Formación Piedra Clavada (Albiano) en su área Tipo, Provincia de Santa Cruz, Argentina

Sara Ballent; Ana Paula Carignano; Ari Iglesias; Daniel G. PoirÉ

doi:10.5710/AMGH.v48i4(419)

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Sara Ballent,^1,2 Ana Paula Carignano,^1,2 Ari Iglesias,^1,3 Daniel G. PoirÉ^1,4

¹Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina (CONICET).
²División Paleontología Invertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Pasaje Teruggi s/n, Paseo del Bosque, B1900FWA La Plata, Argentina.
³División Paleobotánica, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Pasaje Teruggi s/n, Paseo del Bosque, B1900FWA La Plata, Argentina.
⁴Centro de Investigaciones Geológicas, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Avenida 1 N° 645, B1900TAC La Plata, Argentina.

Abstract

Non-marine calcareous microfossils (ostracods and charophytes) and primitive angiosperm seeds (Carpolithus sp.) from the Piedra Clavada Formation (early Albian to early late Albian) in its type area, at Quebrada Don Nielsen section, Santa Cruz Province, Argentina are described and illustrated for the first time. The microfauna suggests a marshy lagoon paleoenvironment. Affinities with Lower Cretaceous microfossil assemblages from the Golfo San Jorge Basin are included.

Citation Download Citation

Sara Ballent, Ana Paula Carignano, Ari Iglesias, and Daniel G. PoirÉ "Microfósiles Calcáreos No Marinos y Semillas de la Formación Piedra Clavada (Albiano) en su área Tipo, Provincia de Santa Cruz, Argentina," Ameghiniana 48(4), 541-555, (1 December 2011). https://doi.org/10.5710/AMGH.v48i4(419)

Received: 14 September 2010; Accepted: 5 March 2011; Published: 1 December 2011

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