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Ameghiniana 37(4) >

Palinología de la Formación Bajo de Véliz (Pérmico Inferior), San Luis, Argentina:
revisión sistemática y consideraciones bioestratigráficas

Pedro Raúl GUTIÉRREZ(1) y Silvia Nélida CÉSARI(1,2)

Ameghiniana 37: 439-462. Buenos Aires. ISSN 0002-7014 AMGHB2

1 Sección Paleobotánica, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Av. Angel Gallardo 470,
C1470DJR Buenos Aires, Argentina. prgmig@sinectis.com.ar.

2 Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.
Pabellón II, Piso 1°, Ciudad Universitaria, (1428) Buenos Aires, Argentina.

Abstract. Palynology of the Bajo de Véliz Formation (Lower Permian), San Luis, Argentina: systematic revision and biostratigphic considerations. The original palynological samples studied by Menéndez from the Bajo de Véliz Formation (San Luis, Argentina), were revised. This stratigraphic unit has yielded one of the few Permian palynological associations recorded from in the Paganzo Basin. Some species, such as: Latusipollenites? quadrisaccatus Marques-Toigo, Hamiapollenites fusiformis Marques-Toigo, Protohaploxypinus limpidus (Balme and Hennelly) Hart, Marsupipollenites striatus (Balme and Hennelly) Foster, and Vittatina subsaccata Samoilovich, were identified in the assemblage for the first time. The occurrence of Barakarites rotatus (Balme and Hennelly) Bharadwaj and Tiwari, Apiculatisporis cornutus (Balme and Hennelly) Høeg and Bose, Fusacolpites fusus Bose and Kar, Protohaploxypinus amplus (Balme and Hennelly) Hart, Verrucosisporites patelliformis (Menéndez) nov. comb., and Granulatisporites sp. cf. G. trisinus Balme and Hennelly, is confirmed. The presence of these species supports the inclusion of this palynological association in the Early Permian Argentinian Fusacolpites fusus-Vittatina subsaccata Biozone.

Key words. Argentina. San Luis Province. Paganzo Basin. Lower Permian. Bajo de Véliz Formation. Palynology. Biostratigraphy.

Palabras clave. Argentina. San Luis. Cuenca Paganzo. Pérmico Inferior. Formación Bajo de Véliz. Palinología. Bioestratigrafía.

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