Microfossils in micrites from Serra da Bodoquena (MS), Brazil: taxonomy and paleoenvironmental implications.

Microfossils present in Quaternary micrites from Serra da Bodoquena, Mato Grosso do Sul State, Brazil, are here described for the first time. The studied taxa are: a) ostracods: Candona sp., Candonopsis sp., Cyclocypris sp., Cypria sp., Cypridopsis sp., Notodromas sp., Ilyocypris sp., Cyprideis sp., Wolburgiopsis cf. chinamuertensis (Musacchio 1970), Darwinula sp. and 5 morphotypes; b) microgastropod Acrobis sp., and c) Characeae remains and gyrogonites Chara sp.. The presence of these microfossils suggests clear-water shallow lacustrine paleoenvironments and the presence of aquatic vegetation. Similarities between microfossils and the living taxa suggest possible Holocene ages for these deposits, which is in accordance with previous C(14) dates.

[1]  E. Musacchio.  OSTRACODOS DE LAS SUPERFAMILIAS CYTHERACEA y DARWINULACEA DE LA FORMACION LA AMARGA (CRETACICO INFERIOR) EN LA PROVINCIA DE NEUQUEN REPUBLICA ARGENTINA , 2013 .

[2]  Giselle Utida.  Fósseis em micritos quaternários da Serra da Bodoquena, Bonito-MS e sua aplicação em estudos paleoambientais , 2009 .

[3]  E. Oliveira.  Tufas calcárias da Serra da Bodoquena, MS , 2009 .

[4]  I. Karmann,et al.  Quaternary tufa in the Serra da Bodoquena Karst, West-Central Brazil: Evidence of wet period , 2009 .

[5]  M. Gross.  A limnic ostracod fauna from the surroundings of the Central Paratethys (Late Middle Miocene/Early Late Miocene; Styrian Basin; Austria) , 2008 .

[6]  J. Colin,et al.  Taxonomy and palaeoecology of new brackish ostracod species from the Middle Cenomanian of Lousa, Lisbon region, Portugal , 2008 .

[7]  B. Sames.  Application of Ostracoda and Charophyta from the Late Jurassic to Early Cretaceous Tendaguru formation at Tendaguru, Tanzania (East Africa) — Biostratigraphy, palaeobiogeography and palaeoecology , 2008 .

[8]  C. L. A. Pires-Zottarelli,et al.  Novas citações de Chytridiomycota e Oomycota para o Parque Estadual das Fontes do Ipiranga (PEFI), SP, Brasil , 2007 .

[9]  William Sallun Filho.  Geomorfologia e geoespeleologia do carste da Serra da Bodoquena, MS , 2005 .

[10]  P. Davies,et al.  Molluscan and ostracod biostrati graphy of Holocene tufa in the Test valley at Bossington, Hampshire, UK , 2005 .

[11]  Dermeval Aparecido Do Carmo.  Taxonomia e distribuição estratigráfica dos ostracodes da Formação Quiricó, Grupo Areado (Cretáceo inferior), bacia Sanfranciscana, Brasil , 2004 .

[12]  R. J. Smith.  Possible fossil ostracod (Crustacea) eggs from the Cretaceous of Brazil , 1999, Journal of Micropalaeontology.

[13]  Raymond C. Moore.  Treatise on Invertebrate Paleontology , 1950 .

[14]  R. Kar,et al.  Fungal taxa from the Miocene sediments of Mizoram, northeast India , 2010 .

[15]  E. Oliveira,et al.  Microfósseis em micritos quaternários da Serra da Bodoquena-MS como indicadores paleoambientais , 2008 .

[16]  T. Namiotko,et al.  Ostracoda of the Eemian Interglacial at Kruklanki in NE Poland , 2003 .

[17]  J. Thorp,et al.  Differences in the Ecology and Distribution of Lotic Pulmonate and Prosobranch Gastropods , 1998 .

[18]  W. Ausich,et al.  Treatise on Invertebrate Paleontology , 1965 .

[19]  Van Morkhoven.  Post-palaeozoic Ostracoda : their morphology, taxonomy and economic use , 1962 .