DEVELOPMENT NANOPLANKTON IN THE END TIMES LIME
Late Cretaceous sediments common? Its rich nanoplankton because at that age, nanoplankton has a very wide geographical deployment and largely preserved in sediments. Nanoplankton in many cross-section set sediments are generally dominated by Genera Watznaueria, Micula, Arkhan? Gelskiella, Cribrosphaerella, Eiffellithus, Predicosphaera, and Retecapsa.
No fluctuation significant progress in addition to the emergence and extinction of some species which occurs gradually in the Late Cretaceous age intervals. The most dramatic development would occur at the peak of the Late Cretaceous (K / T boundry), when set nanoplankton very abundant and diverse changes immediately upon entering the Tertiary age to be very rare and not as diverse as se? Big part of mass extinction. According to Bown (1999), twelve species of eleven genera successfully passed the K / T boundry. Meanwhile, the results of research Panuju (2009) one of the cross section of the wells in the Santos of Brazil revealed that 94% of species have become extinct nanoplankton Late Cretaceous, leaving only 6% of survivors when entering Tertiary meli? Puti seven species of the total abundance of only 21 specimens, ie Braar? dosphaera bigelowii, Biscutum melaniae, Neocrepidolithus neocrassus, Placozygus sigmoides, Cyclagelosaphaera reinhardtii, Markalius inversus, and Scapolithus fossilis.
Late Cretaceous sediments common? Its rich nanoplankton because at that age, nanoplankton has a very wide geographical deployment and largely preserved in sediments. Nanoplankton in many cross-section set sediments are generally dominated by Genera Watznaueria, Micula, Arkhan? Gelskiella, Cribrosphaerella, Eiffellithus, Predicosphaera, and Retecapsa.
No fluctuation significant progress in addition to the emergence and extinction of some species which occurs gradually in the Late Cretaceous age intervals. The most dramatic development would occur at the peak of the Late Cretaceous (K / T boundry), when set nanoplankton very abundant and diverse changes immediately upon entering the Tertiary age to be very rare and not as diverse as se? Big part of mass extinction. According to Bown (1999), twelve species of eleven genera successfully passed the K / T boundry. Meanwhile, the results of research Panuju (2009) one of the cross section of the wells in the Santos of Brazil revealed that 94% of species have become extinct nanoplankton Late Cretaceous, leaving only 6% of survivors when entering Tertiary meli? Puti seven species of the total abundance of only 21 specimens, ie Braar? dosphaera bigelowii, Biscutum melaniae, Neocrepidolithus neocrassus, Placozygus sigmoides, Cyclagelosaphaera reinhardtii, Markalius inversus, and Scapolithus fossilis.
