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Boomer, Ian (1999): Late Cretaceous and Cainozoic bathyal Ostracoda of DSDP Site 62-463 in the Central Pacific (Fig. 3) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.681416, Supplement to: Boomer, I (1999): Late Cretaceous and Cainozoic bathyal Ostracoda from the Central Pacific (DSDP Site 463). Marine Micropaleontology, 37(2), 131-147, https://doi.org/10.1016/S0377-8398(99)00015-8

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Abstract:
Cainozoic deep-sea ostracod assemblages from the summits of Mid-Pacific guyots point to high levels of endemism possibly as a result of their bathymetric separation from the surrounding sea floor. However, the interpretation of these fossil assemblages is hampered by the paucity of comparative material from surrounding non-guyot sites. Fifteen ostracod assemblages from DSDP Site 463 (Late Cretaceous-Pleistocene) were studied to compare with those from nearby guyots. Three distinct faunal assemblages are recognised at Site 463: Assemblage A (Maastrichtian-Eocene), Assemblage B (Oligocene-Upper Miocene) and Assemblage C (Upper Miocene-Pleistocene) although the palaeoenvironmental significance of these units is unclear. Sixty-two ostracod species are identified, the thirteen most abundant are discussed in the taxonomic section, five of which are described as new. Between 30 and 100% of the species encountered in each sample are considered as endemic to Site 463, while some of the remaining species were previously thought to be endemic to individual guyots. Similarly high levels of endemism on nearby guyots probably reflect an incomplete knowledge of deep-sea ostracod faunas rather than the establishment of geographically or bathymetrically restricted populations. The presence of globally pandemic and geographically widespread taxa on sites such as the Mid-Pacific Mountains, surrounded by abyssal depths which lie below the CCD, indicates that some faunal exchange or migration of ostracods does take place. This must be achieved within the intermediate waters and probably occurs passively.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 21.350200 * Longitude: 174.667800
Date/Time Start: 1978-08-02T00:00:00 * Date/Time End: 1978-08-02T00:00:00
Minimum DEPTH, sediment/rock: 2.04 m * Maximum DEPTH, sediment/rock: 65.83 m
Event(s):
62-463 * Latitude: 21.350200 * Longitude: 174.667800 * Date/Time: 1978-08-02T00:00:00 * Elevation: -2525.0 m * Penetration: 822.5 m * Recovery: 305.5 m * Location: North Pacific/SEAMOUNT * Campaign: Leg62 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 92 cores; 820.5 m cored; 0 m drilled; 37.2 % recovery
Comment:
<1 indicates inferred presence of species although not recorded
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 DEPTH, sediment/rockDepth sedmGeocode
2 Sample code/labelSample labelBoomer, IanDSDP/ODP/IODP sample designation
3 Nannofossil zoneNannos zoneBoomer, IanNN/NP Zones
4 EpochEpochBoomer, Ian
5 Argilloecia sp.Argilloecia sp.#Boomer, IanCounting >125 µm fractionvar. A
6 Argilloecia sp.Argilloecia sp.#Boomer, IanCounting >125 µm fractionvar. B
7 Bairdoppilata sp.Bairdoppilata sp.#Boomer, IanCounting >125 µm fractionvar. A
8 Bairdoppilata sp.Bairdoppilata sp.#Boomer, IanCounting >125 µm fractionvar. B
9 Cytherella sp.Cytherella sp.#Boomer, IanCounting >125 µm fractionvar. A
10 Cytherella sp.Cytherella sp.#Boomer, IanCounting >125 µm fractionvar. 10 sensu Boomer and Whalley, 1995
11 Cytherella sp.Cytherella sp.#Boomer, IanCounting >125 µm fractionvar. C
12 Cytherella postagrenaC. postagrena#Boomer, IanCounting >125 µm fractionsp. nov.
13 Pariceratina ubiquitaP. ubiquita#Boomer, IanCounting >125 µm fraction
14 Pennyella sp.Pennyella sp.#Boomer, IanCounting >125 µm fractionvar. A
15 Pennyella sp.Pennyella sp.#Boomer, IanCounting >125 µm fractionvar. B
16 Pennyella sp.Pennyella sp.#Boomer, IanCounting >125 µm fractionvar. C
17 Cytheropleron sp.Cytheropleron sp.#Boomer, IanCounting >125 µm fractionvar. H
18 Hemiparacytheridea sp.Hemiparacytheridea sp.#Boomer, IanCounting >125 µm fractionvar. A
19 Hemiparacytheridea sp.Hemiparacytheridea sp.#Boomer, IanCounting >125 µm fractionvar. 14 sensu boomer and Whalley, 1995
20 Aversovalva sp.Aversovalva sp.#Boomer, IanCounting >125 µm fractionvar. 22
21 Aversovalva sp.Aversovalva sp.#Boomer, IanCounting >125 µm fractionvar. B
22 Aversovalva sp.Aversovalva sp.#Boomer, IanCounting >125 µm fractionvar. 34 sensu Whalley and Boomer, 1995
23 Eucythere sp.Eucythere sp.#Boomer, IanCounting >125 µm fractionvar. C
24 Eucythere sp.Eucythere sp.#Boomer, IanCounting >125 µm fractionvar. D
25 Eucythere sp.Eucythere sp.#Boomer, IanCounting >125 µm fractionvar. A
26 Eucythere sp.Eucythere sp.#Boomer, IanCounting >125 µm fractionvar. B
27 Cytherella posterospinosaC. posterospinosa#Boomer, IanCounting >125 µm fractionsp. nov.
28 Cardobairdia sp.Cardobairdia sp.#Boomer, IanCounting >125 µm fractionvar. A
29 Kuiperiana cf. bathymarinaK. cf. bathymarina#Boomer, IanCounting >125 µm fraction
30 Profundobythere bathytatosP. bathytatos#Boomer, IanCounting >125 µm fraction
31 Abyssocythere paratrinidadensisA. paratrinidadensis#Boomer, IanCounting >125 µm fractionsp. nov.
32 Poseidonamicus dingleiP. dinglei#Boomer, IanCounting >125 µm fractionsp. nov.
33 Cytheropteron sp.Cytheropteron sp.#Boomer, IanCounting >125 µm fractionvar. C
34 Cytheropteron sp.Cytheropteron sp.#Boomer, IanCounting >125 µm fractionvar. G
35 Cytheropteron sp.Cytheropteron sp.#Boomer, IanCounting >125 µm fractionvar. A
36 Cytheropteron sp.Cytheropteron sp.#Boomer, IanCounting >125 µm fractionvar. B
37 Cytheropteron sp.Cytheropteron sp.#Boomer, IanCounting >125 µm fractionvar. F
38 Cytheropteron sp.Cytheropteron sp.#Boomer, IanCounting >125 µm fractionvar. D
39 Hemiparacytheridea ayressiH. ayressi#Boomer, IanCounting >125 µm fractionsp. nov.
40 Krithe sp.Krithe sp.#Boomer, IanCounting >125 µm fractionvar. A
41 Krithe sp.Krithe sp.#Boomer, IanCounting >125 µm fractionvar. B
42 Krithe sp.Krithe sp.#Boomer, IanCounting >125 µm fractionvar. C
43 Krithe sp.Krithe sp.#Boomer, IanCounting >125 µm fractionvar. D
44 Semicytherura pulchraS. pulchra#Boomer, IanCounting >125 µm fraction
45 Aratrocypris sp.Aratrocypris sp.#Boomer, IanCounting >125 µm fractionvar. A
46 Australoecia cf. micraA. cf. micra#Boomer, IanCounting >125 µm fraction
47 Henryhowella cf. asperrimaH. cf. asperrima#Boomer, IanCounting >125 µm fraction
48 Eucytherura sp.Eucytherura sp.#Boomer, IanCounting >125 µm fractionvar. 9 sensu Boomer and Whalley, 1995
49 Eucytherura sp.Eucytherura sp.#Boomer, IanCounting >125 µm fractionvar. 3 sensu Boomer and Whalley, 1995
50 Pedicythere sp.Pedicythere sp.#Boomer, IanCounting >125 µm fractionvar. A
51 Monoceratina sp.Monoceratina sp.#Boomer, IanCounting >125 µm fractionvar. A
52 Hemiparacytheridea mediopunctataH. mediopunctata#Boomer, IanCounting >125 µm fraction
53 Aversovalva formosaA. formosa#Boomer, IanCounting >125 µm fraction
54 Parahemingnayella downingaeP. downingae#Boomer, IanCounting >125 µm fraction
55 Hemiparacytheridea cf. mediopunctataH. cf. mediopunctata#Boomer, IanCounting >125 µm fraction
56 Poseidonamicus cf. rudisP. cf. rudis#Boomer, IanCounting >125 µm fraction
57 Rimacytheropteron sp.Rimacytheropteron sp.#Boomer, IanCounting >125 µm fractionvar. A
58 Bythoceratina sp.Bythoceratina sp.#Boomer, IanCounting >125 µm fractionvar. A
59 Bathycythere bermudeziB. bermudezi#Boomer, IanCounting >125 µm fraction
60 Zabythocypris sp.Zabythocypris sp.#Boomer, IanCounting >125 µm fractionvar. A
61 Bradleya dictyonB. dictyon#Boomer, IanCounting >125 µm fraction
62 Henryhowella cf. dasydermaH. cf. dasyderma#Boomer, IanCounting >125 µm fraction
63 Poseidonamicus sp.Poseidonamicus sp.#Boomer, IanCounting >125 µm fractionvar. B
64 Cytheropteron sp.Cytheropteron sp.#Boomer, IanCounting >125 µm fractionvar. E
65 Cytheropteron sp.Cytheropteron sp.#Boomer, IanCounting >125 µm fractionvar. I
66 Eradleya sp.Eradleya sp.#Boomer, IanCounting >125 µm fractionvar. B
67 OstracodaOstrac#Boomer, IanCounting >125 µm fraction
68 CommentCommentBoomer, IanAssemblage
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1002 data points

Data

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

1 
Depth sed [m]		2 
Sample label
(DSDP/ODP/IODP sample designation)		3 
Nannos zone
(NN/NP Zones)		4 
Epoch		5 
Argilloecia sp. [#]
(var. A, Counting >125 µm frac...)		6 
Argilloecia sp. [#]
(var. B, Counting >125 µm frac...)		7 
Bairdoppilata sp. [#]
(var. A, Counting >125 µm frac...)		8 
Bairdoppilata sp. [#]
(var. B, Counting >125 µm frac...)		9 
Cytherella sp. [#]
(var. A, Counting >125 µm frac...)		10 
Cytherella sp. [#]
(var. 10 sensu Boomer and Whal...)		11 
Cytherella sp. [#]
(var. C, Counting >125 µm frac...)		12 
C. postagrena [#]
(sp. nov., Counting >125 µm fr...)		13 
P. ubiquita [#]
(Counting >125 µm fraction)		14 
Pennyella sp. [#]
(var. A, Counting >125 µm frac...)		15 
Pennyella sp. [#]
(var. B, Counting >125 µm frac...)		16 
Pennyella sp. [#]
(var. C, Counting >125 µm frac...)		17 
Cytheropleron sp. [#]
(var. H, Counting >125 µm frac...)		18 
Hemiparacytheridea sp. [#]
(var. A, Counting >125 µm frac...)		19 
Hemiparacytheridea sp. [#]
(var. 14 sensu boomer and Whal...)		20 
Aversovalva sp. [#]
(var. 22, Counting >125 µm fra...)		21 
Aversovalva sp. [#]
(var. B, Counting >125 µm frac...)		22 
Aversovalva sp. [#]
(var. 34 sensu Whalley and Boo...)		23 
Eucythere sp. [#]
(var. C, Counting >125 µm frac...)		24 
Eucythere sp. [#]
(var. D, Counting >125 µm frac...)		25 
Eucythere sp. [#]
(var. A, Counting >125 µm frac...)		26 
Eucythere sp. [#]
(var. B, Counting >125 µm frac...)		27 
C. posterospinosa [#]
(sp. nov., Counting >125 µm fr...)		28 
Cardobairdia sp. [#]
(var. A, Counting >125 µm frac...)		29 
K. cf. bathymarina [#]
(Counting >125 µm fraction)		30 
P. bathytatos [#]
(Counting >125 µm fraction)		31 
A. paratrinidadensis [#]
(sp. nov., Counting >125 µm fr...)		32 
P. dinglei [#]
(sp. nov., Counting >125 µm fr...)		33 
Cytheropteron sp. [#]
(var. C, Counting >125 µm frac...)		34 
Cytheropteron sp. [#]
(var. G, Counting >125 µm frac...)		35 
Cytheropteron sp. [#]
(var. A, Counting >125 µm frac...)		36 
Cytheropteron sp. [#]
(var. B, Counting >125 µm frac...)		37 
Cytheropteron sp. [#]
(var. F, Counting >125 µm frac...)		38 
Cytheropteron sp. [#]
(var. D, Counting >125 µm frac...)		39 
H. ayressi [#]
(sp. nov., Counting >125 µm fr...)		40 
Krithe sp. [#]
(var. A, Counting >125 µm frac...)		41 
Krithe sp. [#]
(var. B, Counting >125 µm frac...)		42 
Krithe sp. [#]
(var. C, Counting >125 µm frac...)		43 
Krithe sp. [#]
(var. D, Counting >125 µm frac...)		44 
S. pulchra [#]
(Counting >125 µm fraction)		45 
Aratrocypris sp. [#]
(var. A, Counting >125 µm frac...)		46 
A. cf. micra [#]
(Counting >125 µm fraction)		47 
H. cf. asperrima [#]
(Counting >125 µm fraction)		48 
Eucytherura sp. [#]
(var. 9 sensu Boomer and Whall...)		49 
Eucytherura sp. [#]
(var. 3 sensu Boomer and Whall...)		50 
Pedicythere sp. [#]
(var. A, Counting >125 µm frac...)		51 
Monoceratina sp. [#]
(var. A, Counting >125 µm frac...)		52 
H. mediopunctata [#]
(Counting >125 µm fraction)		53 
A. formosa [#]
(Counting >125 µm fraction)		54 
P. downingae [#]
(Counting >125 µm fraction)		55 
H. cf. mediopunctata [#]
(Counting >125 µm fraction)		56 
P. cf. rudis [#]
(Counting >125 µm fraction)		57 
Rimacytheropteron sp. [#]
(var. A, Counting >125 µm frac...)		58 
Bythoceratina sp. [#]
(var. A, Counting >125 µm frac...)		59 
B. bermudezi [#]
(Counting >125 µm fraction)		60 
Zabythocypris sp. [#]
(var. A, Counting >125 µm frac...)		61 
B. dictyon [#]
(Counting >125 µm fraction)		62 
H. cf. dasyderma [#]
(Counting >125 µm fraction)		63 
Poseidonamicus sp. [#]
(var. B, Counting >125 µm frac...)		64 
Cytheropteron sp. [#]
(var. E, Counting >125 µm frac...)		65 
Cytheropteron sp. [#]
(var. I, Counting >125 µm frac...)		66 
Eradleya sp. [#]
(var. B, Counting >125 µm frac...)		67 
Ostrac [#]
(Counting >125 µm fraction)		68 
Comment
(Assemblage)
2.0462-463-1-2,54-61NN19Pleistocene0000000000000000000000000020000002000250000000000000000009001526C
7.1362-463-2-2,13-20NN16upper Pliocene00000000000000000000000000<10000001000230000000000000000003130013C
10.7262-463-2-4,72-99NN16upper Pliocene00000020005200000000000000<1000000<100031000000000000000200<1100016C
16.1062-463-3-1,110-117NN12lower Pliocene00000030002<100000000000000<1000000<100100000000000000000100100008C
20.5062-463-3-4,100-107NN11upper Miocene0000002000<1<100000000000000<1000000<100<100000000000000000<100100003C
27.0062-463-4-2,108-115NN11upper Miocene00000000004<1000000000050001300000<1004000000000000000001020000020C
30.2362-463-4-5,123-130NN11upper Miocene335200000011100101100204110032740301184100010000000100000032000000167B
35.2362-463-5-1,123-130NP23-NP24Oligocene13110303000017000001000411831041880<10<10117100033392000100002000000000210B
36.2562-463-5-2,75-82NP23-NP24Oligocene35680<100001400000<1000<1151<11117<121010764000<12361100<100001100000000152B
40.1162-463-6-2,61-68NP23-NP24Oligocene491<1010010800000100031131<1<1491<134009290002464<1010141210000000000127B
43.6062-463-6-4,110-117NP23-NP24Oligocene9165010020140000020003071<1<121913000025200012841011000000000000000148B
43.9362-463-7-1,43-50NP13Eocene<102000001000000000000001111100000000000000000000000000000000000020A
47.5162-463-7-3,101-108upper Maastrichtian30<101008<13001000001100000000000000000000000000000000000000000018A
56.6362-463-8-3,63-70upper Maastrichtian2020100611001102000000000000000000000000000000000000000000000017A
65.8362-463-9-3,33-40upper Maastrichtian1050200700000000000000000000000000000000000000000000000000000015A