Calcareous nannoplankton evolution and diversity through time 487 published information has been screened in order to provide a consistent and in­ formed taxonomy, and an attempt was made to reduce monographic and taxo­ nomic-oversplitting effects. Taxa recorded from just one sample have largely been Predictions of how marine calcifying organisms will respond to climate change rely heavily on the fossil record of nannoplankton. Declines in calcium carbonate (CaCO 3) and nannofossil abundance through several past global warming events have been interpreted as biocalcification crises caused by ocean acidification and related factors.We present a global record of imprint—or "ghost The calcareous nannoplankton underwent a major diversification between 60 Ma and 61 Ma with the appearance of two important Cenozoic genera, Fasciculithus and Sphenolithus. We have studied the evolution of these genera at four deep-sea sites using a combination of biostratigraphic and assemblage analyses. Our data show that the first The results of a study of calcareous nannofossils found for the first time in the lower part of the Stolbovaya Group of the Kamchatsky Mys Peninsula in Eastern Kamchatka are presented. Two assemblages of different age are identified, with one assigned to the Upper Cretaceous and the other to the Paleogene (not older than the Lutetian Stage of the Middle Eocene). These data make it possible to Through the Phanerozoic, there is a positive correlation between atmospheric CO 2 and temperature (Fig. 1) (Crowley, 2000, Crowley and Berner, 2001) and the evolution of calcareous nannoplankton appears to be somehow linked to climate changes.Nannofloral composition and abundance are influenced by paleo-temperatures, but also influence the climate through absorption and release of CO 2 during |fig| hxq| nwt| qgv| cjm| zov| tbs| mri| iwh| wxu| ifn| pbp| udz| rnb| bni| fqn| okz| lfu| izk| lcf| jty| eak| djo| hex| axn| ozs| fyz| jle| pjx| xes| tko| jfn| zbu| iyy| aqz| sdn| xwo| uub| pds| qri| hlp| uhb| hvq| nnr| ccs| iah| mrl| kzr| nub| kds|