Ostracoda and foraminifera from Paleocene (Olinda well), Paraíba Basin, Brazilian Northeast

Paleocene ostracods and planktonic foraminifera from the Maria Farinha Formation, Paraíba Basin, are herein presented. Eleven ostracod species were identified in the genera Cytherella Jones, Cytherelloidea Alexander, Eocytheropteron Alexander, Semicytherura Wagner, Paracosta Siddiqui, Buntonia Howe, Soudanella Apostolescu, Leguminocythereis Howe and, probably, Pataviella Liebau. The planktonic foraminifera are represented by the genera Guembelitria Cushman, Parvularugoglobigerina Hofker, Woodringina Loeblich and Tappan, Heterohelix Ehrenberg, Zeauvigerina Finlay, Muricohedbergella Huber and Leckie, and Praemurica Olsson, Hemleben, Berggren and Liu. The ostracods and foraminifera analyzed indicate an inner shelf paleoenvironment for the studied section. Blooms of Guembelitria spp., which indicate either shallow environments or upwelling zones, were also recorded reinforcing previous paleoenvironmental interpretations based on other fossil groups for this basin.

Key words:
Brazil; ostracods; Paleocene; Paraíba Basin; foraminifera

Authorship

ENELISE K. PIOVESAN

Laboratório de Geologia Sedimentar e Ambiental/LAGESE, Universidade Federal de Pernambuco, Departamento de Geologia, Centro de Tecnologia e Geociências, Av. Acadêmico Hélio Ramos, s/n, 50740-530 Recife, PE, BrazilUniversidade Federal de PernambucoBrazilRecife, PE, BrazilLaboratório de Geologia Sedimentar e Ambiental/LAGESE, Universidade Federal de Pernambuco, Departamento de Geologia, Centro de Tecnologia e Geociências, Av. Acadêmico Hélio Ramos, s/n, 50740-530 Recife, PE, Brazil

ROBBYSON M. MELO

FERNANDO M. LOPES

Instituto Tecnológico de Micropaleontologia/itt Fossil, Universidade do Vale do Rio dos Sinos/UNISINOS, Av. Unisinos, 950, 93022-750 São Leopoldo, RS, BrazilUniversidade do Vale do Rio dos SinosBrazilSão Leopoldo, RS, BrazilInstituto Tecnológico de Micropaleontologia/itt Fossil, Universidade do Vale do Rio dos Sinos/UNISINOS, Av. Unisinos, 950, 93022-750 São Leopoldo, RS, Brazil

GERSON FAUTH

PETROBRAS/CENPES/PDEP/BPA, Rua Horácio Macedo, 950, Cidade Universitária, Ilha do Fundão, Prédio 32, 21941-915 Rio de Janeiro, RJ, BrazilPETROBRAS/CENPES/PDEP/BPABrazilRio de Janeiro, RJ, BrazilPETROBRAS/CENPES/PDEP/BPA, Rua Horácio Macedo, 950, Cidade Universitária, Ilha do Fundão, Prédio 32, 21941-915 Rio de Janeiro, RJ, Brazil

DENIZE S. COSTA

Correspondence to: Enelise Katia Piovesan E-mail: katiapiovesan@gmail.com

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (5)

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Figure 1
The Paraíba Basin, showing the position of the studied well in Olinda city, Pernambuco State, Brazil (modified from Barbosa et al. 2003BARBOSA JA, SOUZA EM, LIMA FILHO MF AND NEUMANN VH. 2003. A estratigrafia da Bacia Paraíba: uma reconsideração. Estudos Geológicos 13: 89-108. and Gertsch et al. 2013GERTSCH B, KELLER G, ADATTE T AND BERNER Z. 2013. The Cretaceous-Tertiary boundary (KTB) transition in NE Brazil. J Geol Soc 170: 249-262.).

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Figure 2
Scanning electron micrographs of ostracods from Paleocene, Maria Farinha Formation, Paraíba Basin. a. Cytherella piacabucuensis Neufville, 1973NEUFVILLE EMH. 1973. Upper Cretaceous-Palaeogene Ostracoda from the South Atlantic. Publications from the Palaeontological Institution of the University of Uppsala, Special Volume 1: 1-205., C, LV, DGEO-CTG-UFPE-1432. b. Cytherella sp. 1, C, LV, DGEO-CTG-UFPE-1410. c-d. Cytherella sp. 2, c, C, LV, DGEO-CTG-UFPE-1411; d, same specimen DV. e-f. Cytherelloidea sp., e, C, LV, DGEO-CTG-UFPE-1412; f, C, DV DGEO-CTG-UFPE-1413. g-i. Eocytheropteron sp., g, C, RV, DGEO-CTG-UFPE-1414; h, C, DV, DGEO-CTG-UFPE-1415; i, C, LV, DGEO-CTG-UFPE-1416. j-l. Semicytherura sp., j, C, male, RV, DGEO-CTG-UFPE-1417; k, same specimen, LV; l, C, male, DV, DGEO-CTG-UFPE-1418. Scale bars: a-f=100 μm; g-l=50 μm.

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Figure 3
Scanning electron micrographs of ostracods from the Paleocene, Maria Farinha Formation, Paraíba Basin. a-b. Pataviella? sp., a, C, RV, ULVG 11473, DGEO-CTG-UFPE-1419; b, same specimen, DV. c. Paracosta recifeiensisFauth et al. 2005FAUTH G, COLIN JP, KOUTSOUKOS EA AND BENGTSON P. 2005. Cretaceous/Tertiary boundary ostracodes from the Poty Quarry, Pernambuco, northeastern Brazil. J S Am Earth Sci 19(3): 285-305., C, RV, DGEO-CTG-UFPE-1420. d-f . Buntonia sp., d, C, RV, DGEO-CTG-UFPE-1421; e, C, LV, DGEO-CTG-UFPE-1422; f, C, DV, DGEO-CTG-UFPE-1423. g . Soudanella lacioniosa Apostolescu 1961APOSTOLESCU V. 1961. Contribution à l’étude paléontologique (Ostracodes) et stratigraphique des bassins crétacés et tertiaires de l’Afrique occidentale. Rev I Fr Petrol 16(7/8): 779-867., C, female, LV, lost specimen. h-i . Leguminocythereis sp., h, C, male, DV, DGEO-CTG-UFPE-1424; i, same specimen, RV. Scale bars = 100 μm.

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Figure 4
Scanning electron micrographs of planktonic foraminifers from the Paleocene, Maria Farinha Formation, Paraíba Basin. a-b. Guembelitria cretacea Cushman 1983, a, lateral view; b, apertural view. c-e. Parvularugoglobigerina? sp., c, spiral view; d, lateral view; e, umbilical view. f-g. Woodringina hornerstownensis Olsson 1960OLSSON RK. 1960. Foraminifera of latest Cretaceous and earliest Tertiary age in the New Jersey Coastal Plain. J Paleontology 34: 1-58., f, lateral view; g, apertural view. h-i. Heterohelix cf. globulosa (Ehrenberg 1840EHRENBERG CG. 1840. Characteristik von 274 neuen Arten von Infusorien. Akad Wiss Berlin 1840: 197-219.), h, lateral view; i, apertural view. j-k. Zeauvigerina waiparaensis (Jenkins 1965JENKINS G. 1965. Planktonic foraminiferal zones and new taxa from the Danian to lower Miocene of New Zealand. New Zeal J Geol Geop 8: 1088-1126.), j, lateral view; k, apertural view. l-n. Muricohedbergella monmouthensis (Olsson 1960), l, umbilical view; m, lateral apertural view; n. spiral view. o-q. Praemurica cf. pseudoinconstans (Blow 1979BLOW WH. 1979. The Cainozoic Globigerinida, 3rd ed., Leiden: J Brill, 141 p.), o, spiral view; p, apertural view; q, umbilical view. Scale bars: a, b, c, k=10 μm; d, e, j, l, m, o, q=20 μm; F, g, i, n, p=50 μm; h=30 μm.

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Figure 5
Stratigraphic distribution of ostracods and planktonic foraminifera in the Olinda well, Paraíba Basin.

Figure 1 The Paraíba Basin, showing the position of the studied well in Olinda city, Pernambuco State, Brazil (modified from Barbosa et al. 2003BARBOSA JA, SOUZA EM, LIMA FILHO MF AND NEUMANN VH. 2003. A estratigrafia da Bacia Paraíba: uma reconsideração. Estudos Geológicos 13: 89-108. and Gertsch et al. 2013GERTSCH B, KELLER G, ADATTE T AND BERNER Z. 2013. The Cretaceous-Tertiary boundary (KTB) transition in NE Brazil. J Geol Soc 170: 249-262.).

Figure 2 Scanning electron micrographs of ostracods from Paleocene, Maria Farinha Formation, Paraíba Basin. a. Cytherella piacabucuensis Neufville, 1973NEUFVILLE EMH. 1973. Upper Cretaceous-Palaeogene Ostracoda from the South Atlantic. Publications from the Palaeontological Institution of the University of Uppsala, Special Volume 1: 1-205., C, LV, DGEO-CTG-UFPE-1432. b. Cytherella sp. 1, C, LV, DGEO-CTG-UFPE-1410. c-d. Cytherella sp. 2, c, C, LV, DGEO-CTG-UFPE-1411; d, same specimen DV. e-f. Cytherelloidea sp., e, C, LV, DGEO-CTG-UFPE-1412; f, C, DV DGEO-CTG-UFPE-1413. g-i. Eocytheropteron sp., g, C, RV, DGEO-CTG-UFPE-1414; h, C, DV, DGEO-CTG-UFPE-1415; i, C, LV, DGEO-CTG-UFPE-1416. j-l. Semicytherura sp., j, C, male, RV, DGEO-CTG-UFPE-1417; k, same specimen, LV; l, C, male, DV, DGEO-CTG-UFPE-1418. Scale bars: a-f=100 μm; g-l=50 μm.

Figure 3 Scanning electron micrographs of ostracods from the Paleocene, Maria Farinha Formation, Paraíba Basin. a-b. Pataviella? sp., a, C, RV, ULVG 11473, DGEO-CTG-UFPE-1419; b, same specimen, DV. c. Paracosta recifeiensisFauth et al. 2005FAUTH G, COLIN JP, KOUTSOUKOS EA AND BENGTSON P. 2005. Cretaceous/Tertiary boundary ostracodes from the Poty Quarry, Pernambuco, northeastern Brazil. J S Am Earth Sci 19(3): 285-305., C, RV, DGEO-CTG-UFPE-1420. d-f . Buntonia sp., d, C, RV, DGEO-CTG-UFPE-1421; e, C, LV, DGEO-CTG-UFPE-1422; f, C, DV, DGEO-CTG-UFPE-1423. g . Soudanella lacioniosa Apostolescu 1961APOSTOLESCU V. 1961. Contribution à l’étude paléontologique (Ostracodes) et stratigraphique des bassins crétacés et tertiaires de l’Afrique occidentale. Rev I Fr Petrol 16(7/8): 779-867., C, female, LV, lost specimen. h-i . Leguminocythereis sp., h, C, male, DV, DGEO-CTG-UFPE-1424; i, same specimen, RV. Scale bars = 100 μm.

Figure 4 Scanning electron micrographs of planktonic foraminifers from the Paleocene, Maria Farinha Formation, Paraíba Basin. a-b. Guembelitria cretacea Cushman 1983, a, lateral view; b, apertural view. c-e. Parvularugoglobigerina? sp., c, spiral view; d, lateral view; e, umbilical view. f-g. Woodringina hornerstownensis Olsson 1960OLSSON RK. 1960. Foraminifera of latest Cretaceous and earliest Tertiary age in the New Jersey Coastal Plain. J Paleontology 34: 1-58., f, lateral view; g, apertural view. h-i. Heterohelix cf. globulosa (Ehrenberg 1840EHRENBERG CG. 1840. Characteristik von 274 neuen Arten von Infusorien. Akad Wiss Berlin 1840: 197-219.), h, lateral view; i, apertural view. j-k. Zeauvigerina waiparaensis (Jenkins 1965JENKINS G. 1965. Planktonic foraminiferal zones and new taxa from the Danian to lower Miocene of New Zealand. New Zeal J Geol Geop 8: 1088-1126.), j, lateral view; k, apertural view. l-n. Muricohedbergella monmouthensis (Olsson 1960), l, umbilical view; m, lateral apertural view; n. spiral view. o-q. Praemurica cf. pseudoinconstans (Blow 1979BLOW WH. 1979. The Cainozoic Globigerinida, 3rd ed., Leiden: J Brill, 141 p.), o, spiral view; p, apertural view; q, umbilical view. Scale bars: a, b, c, k=10 μm; d, e, j, l, m, o, q=20 μm; F, g, i, n, p=50 μm; h=30 μm.

Figure 5 Stratigraphic distribution of ostracods and planktonic foraminifera in the Olinda well, Paraíba Basin.

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Ostracoda and foraminifera from Paleocene (Olinda well), Paraíba Basin, Brazilian Northeast

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[1] Correspondence to: Enelise Katia Piovesan E-mail: katiapiovesan@gmail.com