Majoran, Stefan; Widmark, Joen G V (1998): Late Cretaceous ostracods recorded from ODP Hole 113-689B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.752266, Supplement to: Majoran, S; Widmark, JGV (1998): Response of deep-sea ostracod assemblages to Late Cretaceous palaeoceanographical changes: ODP Site 689 in the Southern Ocean. Cretaceous Research, 19(6), 843-872, https://doi.org/10.1006/cres.1998.0131
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Abstract:
Twenty-six deep-sea ostracod species are described from the late Campanian to late Maastrichtian of ODP Site 689 in the Southern Ocean. Three are described as new: Cytherelloidea megaspirocostata, Agulhasina sudoceanica and Pennyella foveolata. Correspondence analysis identified three faunal sample groups. The first is mainly characterised by A. sudoceanica, Kirthe sp. and Cytherella sp. This is replaced, first temporarily (between c. 71 and 69 Ma) by a group mainly characterised by Argilloecia spp. and C. megaspirocostata, possibly a consequence of a short-lived global palaeoceanographic event marked by increased ventilation and cooling of intermediate waters at site 689. It then reappears before finally being replaced by a third group largely characterised by Eucythere cf. circumcostata, P. foveolataand Dutoitella mimica Dingle. This final change is coeval with a marked increase in the faunal density of ostracods, probably owing to an increase in food supply. However, the oxygen isotopic records of benthonic foraminifera suggests that the replacement of the first ostracod group by the third is a result of the long term Maastrichtian cooling of intermediate waters at high latitudes. This replacement is also coeval with a gradual change in benthonic foraminiferal assemblages at site 689. It is suggested, therefore, that Pennyella and Dutoitella had a greater potential of adapting to successively colder palaeoceanographical conditions than Agulhasina. The former genera have a cosmopolitan deep-sea distribution today.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -64.517000 * Longitude: 3.099900
Date/Time Start: 1987-01-16T08:00:00 * Date/Time End: 1987-01-18T06:45:00
Minimum DEPTH, sediment/rock: 235.2 m * Maximum DEPTH, sediment/rock: 291.3 m
Event(s):
113-689B * Latitude: -64.517000 * Longitude: 3.099900 * Date/Time Start: 1987-01-16T08:00:00 * Date/Time End: 1987-01-18T06:45:00 * Elevation: -2091.0 m * Penetration: 297.3 m * Recovery: 229.45 m * Location: South Atlantic Ocean * Campaign: Leg113 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 297.3 m cored; 0 m drilled; 77.2 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Majoran, Stefan | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Sample mass | Samp m | g | Majoran, Stefan | ||
| 4 | Abyssocypris sp. | Abyssocypris sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 5 | Cytherella spp. | Cytherella spp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 6 | Pennyella foveolata | P. foveolata | # | Majoran, Stefan | Counting >150 µm fraction | |
| 7 | Ginginella sp. | Ginginella sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 8 | Agulhasina sudoceanica | A. sudoceanica | # | Majoran, Stefan | Counting >150 µm fraction | |
| 9 | Apateloschizocythere sp. | Apateloschizocythere sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 10 | Argilloecia spp. | Argilloecia spp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 11 | Ostracoda, other | Ostrac oth | # | Majoran, Stefan | Counting >150 µm fraction | genus indet A |
| 12 | Cytherelloidea measpirocostata | C. measpirocostata | # | Majoran, Stefan | Counting >150 µm fraction | |
| 13 | Krithe sp. | Krithe sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 14 | Aversovalva sp. | Aversovalva sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 15 | Cytheropteron sp. | Cytheropteron sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 16 | Eucythere sp. | Eucythere sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 17 | Macrocypris sp. | Macrocypris sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 18 | Xestoleberis aff. planoventralis | X. aff. planoventralis | # | Majoran, Stefan | Counting >150 µm fraction | |
| 19 | Cytheropteron sp. | Cytheropteron sp. | # | Majoran, Stefan | Counting >150 µm fraction | sp. 1 |
| 20 | Dutoitella mimica | D. mimica | # | Majoran, Stefan | Counting >150 µm fraction | |
| 21 | Trachyleberis sp. | Trachyleberis sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 22 | Abyssocypris sp. | Abyssocypris sp. | # | Majoran, Stefan | Counting >150 µm fraction | genus questionable |
| 23 | Eucythere cf. circumcostata | E. cf. circumcostata | # | Majoran, Stefan | Counting >150 µm fraction | |
| 24 | Ostracoda, other | Ostrac oth | # | Majoran, Stefan | Counting >150 µm fraction | other unidentified spp. |
| 25 | Abyssobairdia sp. | Abyssobairdia sp. | # | Majoran, Stefan | Counting >150 µm fraction | genus questionable |
| 26 | Bairdoppilata sp. | Bairdoppilata sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 27 | Falsobuntonia sp. | Falsobuntonia sp. | # | Majoran, Stefan | Counting >150 µm fraction | genus questionable |
| 28 | Legitimocythere sp. | Legitimocythere sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 29 | Paracypris sp. | Paracypris sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 30 | Phacorhabdotus sp. | Phacorhabdotus sp. | # | Majoran, Stefan | Counting >150 µm fraction | |
| 31 | Ostracoda fragments | Ostrac fragm | # | Majoran, Stefan | Counting >150 µm fraction | unidentified |
| 32 | Number of species | Spec No | # | Majoran, Stefan | Counting >150 µm fraction | |
| 33 | Ostracoda | Ostrac | # | Majoran, Stefan | Counting >150 µm fraction | identifid |
| 34 | Comment | Comment | Majoran, Stefan | Counting >150 µm fraction | groups by correspondans analyses |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
726 data points