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Recent benthonic foraminifera from Brasil, morphology and ecology; Part IV, Trochamminids from the Campos shelf with description of Paratrochammina n. gen

P.Brönnimann

Paläontologische Zeitschrift 53(1-2): 5-25

1979

ISSN/ISBN: 0031-0220
DOI: 10.1007/bf02987785
Accession: 019857972
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Paratrochammina n. gen., type speciesParatrochammina madeirae n. sp., is proposed for trochamminids with a single interiomarginal, axial-extraaxial aperture which communicates directly with an axial cavity devoid of lamellar structures. Described and illustrated by scanning photographs and optical sections areParatrochammina simplissima (Cushman and McCulloch),Paratrochammina clossi n. sp.,Paratrochammina madeirae n. sp., andTrochammina boltovskoyi n. sp. All these trochamminids, exceptingParatrochammina madeirae n. sp., have been recorded from the shallow waters of the Campos shelf, Brasil, which is under the influence of the cold water Falkland (Malvin) current.Paratrochammina madeirae n. sp. has been only encountered in a sample from the Brasilian shelf between Lat. S 22° und 28°, where it is associated withTrochammina boltovskoyi n. sp. Also illustrated isPortatrochammina pacifica (Cushman) from the Chilean shelf at Cobija and from the Beaufort Sea, Arctica. Further it is proposed to considerTrochammina advena Cushman, 1922 as a nomen non conservandum.

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Related References

Bronnimann, P. 1979: Recent benthonic Foraminifera from Brazil. Morphology and ecology part 4: trochamminids from the Campos Shelf with description of Paratrochammina n. gen Paläontologische Zeitschrift 53(1-2): 5-25
Broennimann, P. 1979: Recent benthonic foraminifera from brazil 6 morphology and ecology 4. trochamminids from the campos shelf with description of paratrochammina madeirae new genus new species Paläontologische Zeitschrift 53(1-2): 5-25
Bronnimann, P. 1980: Recent benthonic foraminifera from Brasil Morphology and ecology Part V: Primitive agglutinated foraminifera from the Campos and Bahia shelf Paläontologische Zeitschrift 54(1-2): 67-89
Bronnimann, P.; Beurlen, G. 1977: Recent benthonic foraminifera from brazil morphology and ecology part 1 polystomammininae new subfamily of the trochamminidae and description of polystomammina planulata from the campos shelf Archives des Sciences (Geneva) 30(1): 77-85
Bronnimann, P. 1980: Recent benthonic Foraminifera from Brazil, morphology and ecology. Part 5: primitive agglutinated Foraminifera from the Campos and Bahia shelf Paläontologische Zeitschrift 54(1-2): 67-89
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Bronnimann, P.; Beurlen, G. 1977: Recent benthonic foraminifera from brazil morphology and ecology part 2 spiroplectamminoides camposi new genus new species from the campos shelf Archives des Sciences (Geneva) 30(1): 85-90
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Broennimann Paul; Beurlen Gerhard 1977: Recent benthonic foraminifera from Brazil, morphology and ecology, Part 1 Archives des Sciences 30(1): 77-90
Broennimann Paul; Beurlen Gerhard 1977: Recent benthonic foraminifera from Brazil, morphology and ecology; Part II Archives des Sciences 30(2): 243-262
Bronnimann, P. 1978: Recent benthonic Forminifera from Brasil. Morphology and ecology. Part 3. Notes on Asterotrochammina Bermudez and Seiglie Notes du Laboratoire de Paleontologie de l'Universite de Geneve, 31-4: 1-11
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Rao, M.S.; Vedantam, D.; Rao, J.N. 1979: Distribution and ecology of benthonic foraminifera in the sediments of the visakhapatnam shelf east coast of india Palaeogeography Palaeoclimatology Palaeoecology 27(3-4): 349-369
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Bronnimann, P.; Whittaker, JE. 1986: On the morphology of Paratrochammina (Lepidoparatrochammina) haynesi (Atkinson) from south Cardigan Bay, Wales, and validation of Paratrochammina (Lepidoparatrochammina) Bronnimann and Whittaker Revue de Paleobiologie 51: 117-125
Bock, W.D. 1975: Characterization of the MAFLA Shelf by benthonic foraminifera Pages 7-8 1975
Wantland, K.F. 1967: Recent benthonic Foraminifera of the British Honduras Shelf Dissertation Abstracts B, The Sciences and Engineering 28