TY - CONF T1 - Larger benthic foraminifera – faunal pioneers in mixed carbonate-siliciclastic systems T2 - 2012 GSA Annual Meeting Y1 - 2012 A1 - Vibor Novak A1 - Nadiezhda Santodomingo A1 - Willem Renema AB - Larger benthic foraminifera are one of the most abundant and widespread organisms in shallow marine tropical environments. Their role as rapid colonizers of new substrates has been suggested, but little is still known to support this idea. To address this question, larger benthic foraminifera assemblages have been studied in the paleoenvironmental reconstruction of a Langhian (Middle Miocene) shallow-water patch reef, as part of a broader multitaxon fossil comunity analysis, including corals, coralline algae, and bryozoans. The studied outcrop (approx. 80 m wide and 25 m thick) is located at the northeast margin of the Kutai Basin near Bontang (Indonesia). The patch-reef was developed in mixed carbonate-siliciclastic depositional environment and despite the high terrigenous input affecting water transparency, this reef contains a diverse marine biota. Five different facies types were distinguished based on lithology and fossil content: foraminifera packstone, bioclastic packstone with foralgal communities, thin-platy coral sheetstone, platy-tabular coral platestone, and shales. Excluding the fossil barren shales facies, only larger benthic foraminifera occur in all four remaining facies types, showing the ability to rapidly adapt to changes in environment. In the current study, high siliciclastic input caused fluctuations in light levels, but also resulted in deposition of soft-bottom substrate. In newly developed conditions, the larger benthic foraminifera appear first and mark the initiation of reef growth. The persistence of LBF throughout the fossil reef succession indicates their high tolerance to terrigenous input and also highlight the role of foraminifera as primary colonizers, proving themselves as important faunal pioneers, particularly in mixed carbonate-siliciclastic systems. JF - 2012 GSA Annual Meeting CY - Charlotte, NC ER - TY - CONF T1 - Palaeoenvironmental reconstruction of a Miocene patch reef in East Kalimantan (Indonesia): a close-up on the bryozoan component T2 - IBA Larwood Meeting Y1 - 2012 A1 - Emanuela Di Martino A1 - Paul D. Taylor A1 - Vibor Novak A1 - Nadiezhda Santodomingo A1 - Anja Rösler A1 - Juan Carlos Braga A1 - Kenneth G. Johnson A1 - Willem Renema JF - IBA Larwood Meeting CY - Brno Czech Republic ER - TY - CONF T1 - Environmental reconstruction of a Langhian patch reef (East Kalimantan, Indonesia) T2 - Lyell Meeting 2012 Y1 - 2012 A1 - Vibor Novak A1 - Nadiezhda Santodomingo A1 - Anja Rösler A1 - Emanuela Di Martino A1 - Juan C. Braga A1 - Paul D Taylor A1 - Kenneth G. Johnson A1 - Willem Renema JF - Lyell Meeting 2012 ER - TY - CONF T1 - Bryozoans from a Langhian patch reef in East Kalimantan (Indonesia) T2 - Giornate di Paleontologia XII edizione – Catania, 24-26 Maggio 2012 Y1 - 2012 A1 - Emanuela Di Martino A1 - Paul D. Taylor A1 - Vibor Novak A1 - Nadiezhda Santodomingo A1 - Anja Rösler A1 - Juan Carlos Braga A1 - Kenneth G. Johnson A1 - Willem Renema JF - Giornate di Paleontologia XII edizione – Catania, 24-26 Maggio 2012 CY - Catania, Italy ER -