Resumen de Larger foraminifera from Late Oligocene-Earliest Miocene reefal limestones of North East Borneo

M.K. Boudagher Fadel, J.J. Noad, Alan Lord

• español

  Las calizas Gomantong, localizadas al este de Sabah (Borneo), se depositaron a lo largo de la línea de costa en un paleoalto de la cuenca interna en dirección este-oeste. El estudio bioestratigráfico de 125 muestras procedentes de 14 afloramientos del Oligoceno Superior-Mioceno Inferior ha permitido la revision del Abiostratigraphical index taxa@ de los macroforaminíferos del ATe Letter Stage@ de Oriente. En este trabajo se describen e ilustran dieciséis especies y se propone un nuevo taxón: Lepidocyclina banneri n.sp. Gracias a este estudio es posible correlacionar los ATe Letter Stage@ (con los rangos de los macroforaminíferos revisados) del Terciario Oriental con los Astages@ y el marco estratigráfico europeo

• English

  The Gomantong Limestone of eastern Sabah (Borneo) was deposited along an east-west trending shoreline, developed on a palaeohigh within the foreland basin. A detailed biostratigraphical study of 125 Late Oligocene and Early Miocene samples from 14 measured outcrop sections has led to a revision of the biostratigraphical index taxa of the larger foraminiferal ATe Letter Stage@ of the Far East. Sixteen species are here described and illustrated with one newly proposed taxon: Lepidocyclina banneri new species. As a result of this work, it is now possible to correlate the ATe Letter Stage@ of the Far East Tertiary, with revised larger foraminiferal ranges, and the European stratigraphic framework and Astages@