Revised foraminiferal taxa and biostratigraphy of Bathonian to Ryazanian deposits in Spitsbergen

摘要

The Bathonian to Ryazanian succession of Central Spitsbergen consists mainly of shales with high to intermediate of- ganic content, and preserves an essentially continuous foraminiferal record composed almost exclusively of agglutinating taxa. The as- semblages are reexamined in three extensively sampled sections, with supplementary material included from other localities in Spitsbergen and the Russian Arctic. The foraminiferal record of Spitsbergen is subdivided into eight interval zones, which are correlated with a Boreal ammonite zonal Scheme using a graphic procedure.