(Appendix A) Abundance of ostracode species from DSDP Hole 48-401 ...

• Main Authors: Yamaguchi, Tatsuhiko, Norris, Richard D
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Sample code/label; DEPTH, sediment/rock; Depth, top/min; Depth, bottom/max; Abyssobairdia sp.; Argilloecia sp.; Bythoceratina sp.; Cardobairdia sp.; Cytherella sp.; Cytheropteron sp.; Eucythere sp.; Krithe crassicaudata; Krithe sp.; Neonesidea cymbula; Paleoabyssocythere sp.; Phacorhabdotus sp.; Platyleberis sp.; Poseidonamicus sp.; Trachyleberidea sp.; Ostracoda indeterminata; Drilling/drill rig; DSDP/ODP/IODP sample designation; Counting >115 µm fraction; Leg48; Glomar Challenger; Deep Sea Drilling Project DSDP; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.811195; https://doi.pangaea.de/10.1594/PANGAEA.811195

Previous low resolution studies suggest that ostracodes, in contrast with deep sea foraminifera, largely survived the massive environmental changes of the Paleocene–Eocene thermal maximum (PETM). In a new high-resolution study from the continental slope (~1800 m paleodepth) NE Atlantic, we also find extensive survivorship of ostracode faunas, but this is accompanied by a temporary drop in species diversity and ecological diversity during the PETM. There are 12 common ostracode species before the PETM that are reduced to only two species at the same time as the benthic foraminiferal extinction event. All but three species reappear in the later parts of the PETM and statistical analysis suggests that most of the apparent “Lazarus” species might be found with sufficient sampling of PETM faunas. We find no evidence for an excursion fauna of ostracodes as has been detected in calcareous nannofossils, planktic foraminifera, and benthic foraminifera. However, the ostracode assemblages changed from a relatively ... : Supplement to: Yamaguchi, Tatsuhiko; Norris, Richard D (2012): Deep-sea ostracode turnovers through the Paleocene-Eocene thermal maximum in DSDP Site 401, Bay of Biscay, North Atlantic. Marine Micropaleontology, 86-87, 32-44 ...