A new biostratigraphic correlation for Late Cretaceous-Paleocene strata of the Gulf of Guinea: Evidence from dinoflagellate cysts

作者：Sanchez Pellicer Raquel^*; Masure Edwige; Villier Loic

来源：Comptes Rendus Geoscience, 2017, 349(1): 32-41.

DOI：10.1016/j.crte.2016.11.001

• Upper Cretaceous/Palaeocene
• Cote d'Ivoire-Ghana
• ODP Hole 959D
• Biostratigraphy
• Dinoflagellate cysts

A new biostratigraphic correlation for Late Cretaceous and Palaeocene strata of the Cote d'Ivoire-Ghana continental margin has been developed from the identification of significant dinoflagellate cyst events in ODP Hole 959D. The Late Cretaceous stage boundaries are mostly consistent with previous studies. However, the Maastrichtian/Danian boundary is placed much lower than previously recognized on the basis of the first occurrences of Carpatella cornuta and Damassadinium californicum. The base of the Selandian is recognized from the last occurrence of Cerodinium diebelii and the first occurrence of Adnatosphaeridium multispinosum. The base of the Thanetian is recognized from the first occurrence of Areoligera gippingensis. The rarity of the age-marker taxa is the main reason for different age determinations among studies of the same section.

• 出版日期2017-1