Phyletic evolution of calcareous nannofossil species Reticulofenestra oamaruensis: An example of microevolution preserved at IODP Site U1553 (Southern Pacific Ocean)

• Published in: Marine Micropaleontology
• Main Authors: Catelli V., Persico Davide, Righi D., Raffi I., Fioroni C., Villa Giuliana.
• Other Authors: Catelli, V., Persico, Davide, Righi, D., Raffi, I., Fioroni, C., Villa, Giuliana.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2025
• Subjects: Reticulofenestra oamaruensis; Southern Ocean; Microevolution; Phyletic lineage; Eocene-Oligocene transition; Calcareous nannofossils; Pacific; Campbell Plateau
• Online Access: https://hdl.handle.net/11380/1373448; https://doi.org/10.1016/j.marmicro.2025.102452

The IODP Expedition 378 in the Southern Ocean (Campbell Plateau) recovered a Paleogene sedimentary section at Site U1553, cored through multiple holes (A - E) in the late Eocene-early Oligocene interval. Stratigraphic continuity and good preservation of calcareous nannofossils offered the opportunit...