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Journal of Micropalaeontology An open-access journal of The Micropalaeontological Society
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Volume 18, issue 1
J. Micropalaeontol., 18, 1–16, 1999
https://doi.org/10.1144/jm.18.1.1
© Author(s) 1999. This work is distributed under
the Creative Commons Attribution 4.0 License.
J. Micropalaeontol., 18, 1–16, 1999
https://doi.org/10.1144/jm.18.1.1
© Author(s) 1999. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 Jun 1999

01 Jun 1999

Taxonomy and ecology of the Family Cytheruridae (Ostracoda) in Recent sediments from the northern Rio de Janeiro coast, Brazil

Maria Ines Feijo Ramos1,2, Joao Carlos Coimbra1, Robin C. Whatley2, and Alicia Moguilevsky2 Maria Ines Feijo Ramos et al.
  • 1Instituto de Geociências, UFRGS, Caixa Postal 15001, CEP 91501-970, Porto Alegre, RS, Brazil. email: ;
  • 2Institute of Earth Studies, University of Wales, Aberystwyth SY23 3DB, UK. email: ;

Abstract. A study of the family Cytheruridae in Recent sediments from the coast of northern Rio de Janeiro State revealed the presence of four new species: (Hemicytherura auriculata, Oculocytheropteron delicatum, Oculocytheropteron circumcostatum and Semicytherura caudata,) and four previously described species (Semicytherura rugosoreticulata Whatley, Chadwick, Coxill & Toy, 1988, Oculocytheropteron macropunctatum Whatley, Chadwick, Coxill & Toy, 1988, Oculocytheropteron reticulopunctatum Whatley, Chadwick, Coxill & Toy, 1988 and Paracytheridea bulbosa Purper & Ornellas, 1989). A further two species Cytheropteron sp. and Kangarina sp. are left in open nomenclature due to paucity of the material. The ecology and distribution of the fauna suggest that the presence of many of these species, which also occur in colder waters off the coast of Uruguay and Argentina, is probably due to the upwelling of the South Atlantic Central Water in this area.

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