标题:Benthic assemblages, diversity controls and environmental parameters: assessing different scales of complexity in coralline algal and larger foraminiferal carbonates in the Paleogene.
摘要:The Paleogene encompasses dramatic changes in shallow water carbonate facies and the benthic assemblages which also affected algal assemblages. These changes are related to extinction events, the immigration of new biota and the origination of new facies types, as well as changes in climate and nutrient regimes. Biotic developments during the Paleogene, especially at the Eocene/Oligocene boundary, have been coupled to climatic changes (cooling) attributed to major changes in plate tectonic configurations and/or atmospheric gas concentrations. Shallow water platform environments represent the transition between the terrestrial and oceanic realms, both of which have produced detailed records of climatic and diversity changes during the Paleogene.