Biogeographic and Ecologic Patterns in Calcareous Nannoplankton in the Atlantic and Pacific Oceans During the Terminal Cretaceous

• Main Authors: Henriksson, Anders S., Malmgren, Björn A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Studia Geologica Salmanticensia 2018
• Subjects: Patrones biogeográficos; ecológicos; Nanoplancton Calcáreo; Atlántico; Pacífico; Cretácico Terminal; Biogeographic; Ecologic Patterns; Calcareous Nannoplankton; Atlantic Oceans; Pacific Oceans; Terminal Cretaceous; Pacific; North Atlantic
• Online Access: https://revistas.usal.es/index.php/0211-8327/article/view/17682

Calcareous nannoplankton biogeography in the Cretaceous ocean has been analyzed from their floral composition at a time-slice spanning the upper parts of the Micula prinsii Zone (approximately the latest 10-60 kyr of the Cretaceous) at DSDP (Deep Sea Drilling Project) sites from low (160) through middle (3 T) paleolatitudes in both the Northern and the Southern Hemisphere. The study is based on relative abundance data of 44 species at Sites 356, 525A, and 527 from the South Atlantic, Sites 384 and 548A from the North Atlantic, and Site 465A from the Pacific Ocean. La biogeografía de nanoplancton calcáreo en el océano Cretácico se ha analizado a partir de su composición floral en un intervalo de tiempo que abarca las partes superiores de la zona Micula prinsii (aproximadamente los últimos 10-60 kyr del Cretácico) en DSDP (Deep Sea Drilling Project). sitios desde bajas (160) hasta medias (3 T) paleolatitudes en el hemisferio norte y sur. El estudio se basa en datos de abundancia relativa de 44 especies en los Sitios 356, 525A y 527 del Atlántico Sur, los Sitios 384 y 548A del Atlántico Norte y el Sitio 465A del Océano Pacífico.