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Yamaguchi, Tatsuhiko; Norris, Richard D (2012): (Appendix A) Abundance of ostracode species from DSDP Hole 48-401 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.811195, Supplement to: Yamaguchi, T; Norris, RD (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, https://doi.org/10.1016/j.marmicro.2012.02.003

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Abstract:
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 diverse ecological assemblage before and after the PETM to one dominated by infaunal species typical of low oxygen conditions during the PETM. The absence of major extinction and the temporary nature of species disappearances are comparable to turnovers in shallow marine ostracodes and stands in sharp contrast to the ~ 50% species-level extinction in benthic foraminifers.
Project(s):
Coverage:
Latitude: 47.427500 * Longitude: -8.810300
Date/Time Start: 1976-06-06T00:00:00 * Date/Time End: 1976-06-06T00:00:00
Minimum DEPTH, sediment/rock: 198.54 m * Maximum DEPTH, sediment/rock: 204.45 m
Event(s):
48-401 * Latitude: 47.427500 * Longitude: -8.810300 * Date/Time: 1976-06-06T00:00:00 * Elevation: -2495.0 m * Penetration: 341 m * Recovery: 103.1 m * Location: North Atlantic/TERRACE * Campaign: Leg48 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores; 228 m cored; 38 m drilled; 45.2 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Sample code/labelSample labelYamaguchi, TatsuhikoDSDP/ODP/IODP sample designation
DEPTH, sediment/rockDepth sedmGeocode – mbsf
Depth, top/minDepth topmYamaguchi, Tatsuhiko
Depth, bottom/maxDepth botmYamaguchi, Tatsuhiko
Abyssobairdia sp.Abyssobairdia sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
Argilloecia sp.Argilloecia sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
Bythoceratina sp.Bythoceratina sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
Cardobairdia sp.Cardobairdia sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
Cytherella sp.Cytherella sp.#Yamaguchi, TatsuhikoCounting >115 µm fractionsp. 1
10 Cytherella sp.Cytherella sp.#Yamaguchi, TatsuhikoCounting >115 µm fractionsp. 2
11 Cytheropteron sp.Cytheropteron sp.#Yamaguchi, TatsuhikoCounting >115 µm fractionsp. 1
12 Cytheropteron sp.Cytheropteron sp.#Yamaguchi, TatsuhikoCounting >115 µm fractionsp. 2
13 Eucythere sp.Eucythere sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
14 Krithe crassicaudataK. crassicaudata#Yamaguchi, TatsuhikoCounting >115 µm fraction
15 Krithe sp.Krithe sp.#Yamaguchi, TatsuhikoCounting >115 µm fractionsp. 1
16 Krithe sp.Krithe sp.#Yamaguchi, TatsuhikoCounting >115 µm fractionsp. 2
17 Neonesidea cymbulaN. cymbula#Yamaguchi, TatsuhikoCounting >115 µm fraction
18 Paleoabyssocythere sp.Paleoabyssocythere sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
19 Phacorhabdotus sp.Phacorhabdotus sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
20 Platyleberis sp.Platyleberis sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
21 Poseidonamicus sp.Poseidonamicus sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
22 Trachyleberidea sp.Trachyleberidea sp.#Yamaguchi, TatsuhikoCounting >115 µm fraction
23 Ostracoda indeterminataOstrac indet#Yamaguchi, TatsuhikoCounting >115 µm fractionGen. et sp. indet. 1
24 Ostracoda indeterminataOstrac indet#Yamaguchi, TatsuhikoCounting >115 µm fractionGen. et sp. indet. 2
Size:
2068 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Sample label
(DSDP/ODP/IODP sample designation)

Depth sed [m]
(mbsf)

Depth top [m]

Depth bot [m]

Abyssobairdia sp. [#]
(Counting >115 µm fraction)

Argilloecia sp. [#]
(Counting >115 µm fraction)

Bythoceratina sp. [#]
(Counting >115 µm fraction)

Cardobairdia sp. [#]
(Counting >115 µm fraction)

Cytherella sp. [#]
(sp. 1, Counting >115 µm fraction)
10 
Cytherella sp. [#]
(sp. 2, Counting >115 µm fraction)
11 
Cytheropteron sp. [#]
(sp. 1, Counting >115 µm fraction)
12 
Cytheropteron sp. [#]
(sp. 2, Counting >115 µm fraction)
13 
Eucythere sp. [#]
(Counting >115 µm fraction)
14 
K. crassicaudata [#]
(Counting >115 µm fraction)
15 
Krithe sp. [#]
(sp. 1, Counting >115 µm fraction)
16 
Krithe sp. [#]
(sp. 2, Counting >115 µm fraction)
17 
N. cymbula [#]
(Counting >115 µm fraction)
18 
Paleoabyssocythere sp. [#]
(Counting >115 µm fraction)
19 
Phacorhabdotus sp. [#]
(Counting >115 µm fraction)
20 
Platyleberis sp. [#]
(Counting >115 µm fraction)
21 
Poseidonamicus sp. [#]
(Counting >115 µm fraction)
22 
Trachyleberidea sp. [#]
(Counting >115 µm fraction)
23 
Ostrac indet [#]
(Gen. et sp. indet. 1, Countin...)
24 
Ostrac indet [#]
(Gen. et sp. indet. 2, Countin...)
48-401-14R-1,4-6198.5400000000072000000000
48-401-14R-1,19-21198.69198.55198.85010001000170010000010
48-401-14R-1,30-32198.80198.55198.85010000000104110000000
48-401-14R-1,45-47198.95198.85199.15010000000160010000000
48-401-14R-1,56-58199.06198.85199.1500000000041000000000
48-401-14R-1,68-70199.18199.15199.4500002000011000000000
48-401-14R-1,81-83199.31199.15199.4501000300010210000100
48-401-14R-1,91-93199.41199.15199.4500000000001010000000
48-401-14R-1,101-103199.51199.45199.7501001000021110000000
48-401-14R-1,110-113199.60199.45199.7500000300021010000000
48-401-14R-1,120-122199.70199.45199.7503000300031110000000
48-401-14R-1,128-130199.78199.75200.0500000100081100100000
48-401-14R-1,138-140199.88199.75200.05040022000150200000000
48-401-14R-1,148-150199.98199.75200.05020001000181110000000
48-401-14R-2,8-10200.08200.05200.3513002100056460000400
48-401-14R-2,21-23200.21200.05200.3500000200030060000100
48-401-14R-2,31-33200.31200.05200.3501000100042020000100
48-401-14R-2,40-42200.40200.35200.6501003000010000000000
48-401-14R-2,50-52200.50200.35200.6500002200042020000000
48-401-14R-2,63-65200.63200.35200.6501000100070110000000
48-401-14R-2,72-74200.72200.65200.9502001101022000000000
48-401-14R-2,83-85200.83200.65200.9500000100000010000000
48-401-14R-2,91-93200.91200.65200.95000023000114140000000
48-401-14R-2,100-102201.00200.95201.25010001000104350000100
48-401-14R-2,110-112201.10200.95201.25000001000121010000000
48-401-14R-2,120-122201.20200.95201.25000002000150000000000
48-401-14R-2,129-131201.29201.25201.5502000100052200000000
48-401-14R-2,140-142201.40201.25201.55020002000180000020000
48-401-14R-2,148-150201.48201.25201.5500000000020000000000
48-401-14R-3,6-8201.56201.55201.8502000000000010000000
48-401-14R-3,11-13201.61201.55201.85000000000122120000000
48-401-14R-3,16-18201.66201.55201.8500000000052010000000
48-401-14R-3,21-23201.71201.55201.85000000000111010000100
48-401-14R-3,26-27201.76201.55201.8500000000093000000000
48-401-14R-3,31-33201.81201.55201.85010000000120000000000
48-401-14R-3,37-39201.87201.85202.1500000000080000000000
48-401-14R-3,42-44201.92201.85202.1500000000021000000000
48-401-14R-3,47-49201.97201.85202.15010000000362000000000
48-401-14R-3,52-54202.02201.85202.15010000000260000000000
48-401-14R-3,58-60202.08201.85202.15010000000284000000000
48-401-14R-3,63-65202.13201.85202.15010000000241010000000
48-401-14R-3,68-70202.18202.15202.45000000000284000000000
48-401-14R-3,74-76202.24202.15202.45000000000191200000000
48-401-14R-3,79-81.5202.29202.15202.45000000000100000000000
48-401-14R-3,84-86202.34202.15202.4500000000041000000000
48-401-14R-3,90-92202.40202.15202.45000000000182000000000
48-401-14R-3,103-106202.53202.45202.7500001000010000000100
48-401-14R-3,108-110202.58202.45202.7500000000030020000100
48-401-14R-3,112-114202.62202.45202.7502101000030040001100
48-401-14R-3,117-119202.67202.45202.7500001000020010000000
48-401-14R-3,122-123202.72202.45202.75000000000102010040100
48-401-14R-3,127-128202.77202.75203.0500003110073030001000
48-401-14R-3,133-134202.83202.75203.05000000000101000003000
48-401-14R-3,138-140202.88202.75203.05000010000121020000000
48-401-14R-3,143-145202.93202.75203.0503001000060000021100
48-401-14R-3,148-150202.98202.75203.05020010000181030003000
48-401-14R-4,22-23203.22203.05203.3504401010051020025000
48-401-14R-4,23-24203.23203.05203.3503102100056040024000
48-401-14R-4,24-25203.24203.05203.3500101000063030000200
48-401-14R-4,25-26203.25203.05203.3501110000041000024000
48-401-14R-4,26-27203.26203.05203.35012170000156051025200
48-401-14R-4,27-28203.27203.05203.35031060101133030012300
48-401-14R-4,28-29203.28203.05203.350101040101743200010000
48-401-14R-4,29-30203.29203.05203.35010010000131030013100
48-401-14R-4,30-31203.30203.05203.3503203000082020006000
48-401-14R-4,32-33203.32203.05203.3503010200063030113300
48-401-14R-4,33-34203.33203.05203.35010100000104020042100
48-401-14R-4,34-35203.34203.05203.3502002000090050004000
48-401-14R-4,35-36203.35203.35203.65020160100113000013100
48-401-14R-4,36-37203.36203.35203.65020002001120020002100
48-401-14R-4,37-38203.37203.35203.6500000010011000001000
48-401-14R-4,38-39203.38203.35203.6500004000010130012000
48-401-14R-4,39-40203.39203.35203.6501001000025020001101
48-401-14R-4,45-46203.45203.35203.6502013010052020201200
48-401-14R-4,50-51203.50203.35203.6501000000047520013000
48-401-14R-4,55-56203.55203.35203.6501002200002030010000
48-401-14R-4,60-61203.60203.35203.6502000100020010020000
48-401-14R-4,65-66203.65203.65203.9500003000170040023000
48-401-14R-4,70-71203.70203.65203.95011002000102080022100
48-401-14R-4,75-76203.75203.65203.9500001000021020001000
48-401-14R-4,80-81203.80203.65203.9501400600075000030000
48-401-14R-4,85-86203.85203.65203.9502104000090010020000
48-401-14R-4,90-91203.90203.65203.9500100100030010022000
48-401-14R-4,95-96203.95203.95204.2500000000090000011300
48-401-14R-4,100-101204.00203.95204.2500010000010030000000
48-401-14R-4,115-116204.15203.95204.2500001000020010000000
48-401-14R-4,120-121204.20203.95204.2501000000031040002000
48-401-14R-4,130-131204.30204.25204.5500001000051010051000
48-401-14R-4,140-141204.40204.25204.5501000000041000011000
48-401-14R-4,145-146204.45204.25204.5500000000020010020000