TOMO 1 - Análisis de Cuencas
ATURIA CUBAENSIS (LEA, 1841) (CEPHALOPODA, NAUTILOIDEA) IN THE MIOCENE OF CHILE: PALEOBIOGEOGRAPHY, TAPHONOMY AND MODE OF LIFE Sven N. Nielsen (1), Klaus Bandel (2) & Björn Kröger (3) (1) GeoForschungsZentrum-Potsdam, Sektion 3.1, Telegrafenberg, 14473 Potsdam, Germany ([email protected]) (2) Geologisch-Paläontologisches Institut und Museum, Universität Hamburg, Bundesstrasse 55, 20146 Hamburg, Germany (3) Museum für Naturkunde, Invalidenstrasse 43, 10115 Berlin, Germany GEOLOGY Fossil nautiloids belonging to the genus Aturia have been found at several localities along the coast of central and southern Chile (Fig. 1). The sedimentology of the Navidad Formation has been treated in detail by Tavera (1979) and Encinas et al. (2003) but only very short sedimentological descriptions are available for the Ranquil Formation (García, 1968) and the Lacui Formation (Antinao et al., 2000). The locality at Bahía Inútil (POR) is the type section of the Late Eocene-Early Oligocene Cameronian Stage of Natland and Gonzales (1974). The localities mentioned here, except that in Tierra del Fuego, have been dated as latest Miocene by Finger et al. (2003).
Figure 1. Localities yielding Aturia cubaensis. A. Navidad Fm. B. Ranquil Fm. C. Lacui Fm.