International Symposium on Ostracoda - postSyposium.thtml
FOSSIL AND RECENT OSTRACODA IN BRAZIL
MESOZOIC MARINE OSTRACODS
Gerson Fauth
Laboratório de Micropaleontologia. Universidade do Vale do Rio dos Sinos, São Leopoldo-RS. CEP 93022-000.
E-mail: gersonf@unisinos.br
Marta Cláudia Viviers
Gerência de Bioestratigrafia e Paleoecologia, PETROBRAS/CENPES/PDEXP, Rio de Janeiro-RJ. CEP 21910-240.
E-mail: mcviviers@petrobras.com.br
The Brazilian marine Mesozoic sequence contains a rich and poorly known ostracod fauna. The research in this area is an important approach to better understanding the geologic evolution of the Atlantic Ocean.
The first studies in marine ostracod assemblages were carried out by Krömmembein (1964, 1967, 1966 and 1975a,b) studying the taxonomy and distribution of ostracod species in northeastern Brazil (Sergipe basin) and North Africa. The author described two new genera and species for Albian section and a new species for the Turonian section. Neufville (1979) analyzed the ostracods of upper Cretaceous-Paleogene sections from Sergipe-Alagoas basin. Stinnesbeck and Reyment (1988) studied the ostracod assemblages of Poty quarry (Pernambuco basin) and discussed briefly paleobiogeographic relationships between Africa and South America.
Until the 2000, when was observed an increase in the study of Mesozoic marine ostracod assemblages, many works, always on a good stratigraphical context, presented only a brief mention of marine ostracod ocurrences in Cretaceous Brazilian basins (mainly Sergipe-Alagoas, Parnaiba and Potiguar bains). Among them, can be mentionated the works of Kegel, 1957; Beurlen, 1967; Sampaio and Schaller, 1967; Tinoco, 1967; Schaller, 1969; Bengston, 1983; Koutsoukos and Dias-Brito, 1987; Viviers and Regali, 1987; Matsuda and Viviers, 1989; Colin and Andreu, 1990 and Viviers, 1990, 1995;
After 2000, the study of marine Mesozoic ostracods was focused mainly upon taxonomic, biostratigraphic and paleobiogeographic approaches. Delicio et al. (2000) analyzed the distribution of upper Cretaceous ostracods in Potiguar basin, described tree new species and showed two biozones for the Cenomanian-Campanian section. Viviers et al. (2000) carried out taxonomic and biostratigraphic studies of marine ostracods from late Aptian to Campanian sections of Potiguar and Sergipe basins. The authors presented six biozones to Albian-Campanian of Potiguar basin and four biozones to upper Aptian-Coniacian of Sergipe basin, discussing the paleobiogeography, biostratigraphy and faunal similarities with the African basins. Miller et al. (2002) accomplished an integrated study where the ostracods were briefly showed and discussed, while Fauth (2002) discussed the paleobiogeography of the upper Cretaceous to lower Tertiary marine ostracods from the Atlantic Ocean. Fauth eTt al. (2005) showed a taxonomic study of the marine ostracods observed at the Cretaceous/Tertiary boundary from the Poty quarry, in Pernambuco-Paraíba basin. Among the thirty taxa identified, one genus and eight species are new.
References:
Beurlen, K. 1969. Geologia da região de Mossoró. Coleção Mossoroense, Série C, 18:1-173.
Colin, J.-P. & Andreu, B. 1990. Cretaceous halocyprid Ostracoda. In: R. Whatley & C. Maybury (eds.) Ostracoda and global events, p.515-523.
Delicio, A.P., Coimbra, J.P. & Carreno, A.L. 2000. Cretaceous marine Ostracoda from the Potiguar basin, Northeastern Brazil. Neues Jahrbuch für Geologie and Paläontologie Abhandlungen, 215(3):321-345.
Fauth, G. 2002. Paleobiogeography of the Upper Cretaceous to lower Tertiary marine ostracods from the Atlantic Ocean. Revista Brasileira de Paleontologia, 4:65-71.
Fauth, G.; Colin, J.P.; Koutsoukos, E.A.M. & Bengtson, P. 2005. Cretaceous/Tertiary boundary ostracodes from the Poty Quarry, Pernambuco, northeastern Brazil. Journal of South American Earth Sciences, 19(3): 285-305.
Kegel, W. 1957. Contribuição ao estudo da bacia costeira do Rio Grande do Norte. DNPM/DGM, Boletin 170:1-52. (reprinted. 1981 In: Estudos de Paleontologia Potiguar, Col. Mossoroense, 157:55-104.
Koutsoukos, E.A.M. & Dias-Brito, D. 1987. Paleobatimetría da margem continental do Brasil durante o Albiano. Revista Brasileira de Geociências, 17:86-91.
Krömmelbein, K. 1964. Ostracoden aus der marinen “Küsten-Kreide” Brasiliens: 1. Brachycythere (Brachycythere) sapucariensis n. sp. aus dem Turonium. Senckenbergiana Lethaea, 45: 489-495.
Krömmelbein, K. 1966 Preliminary remarks on some marine Cretaceous ostracodes from Northeastern Brazil. and West Africa. In: 2nd West African Micropaleontological Colloquium, 1965: p.119-123.
Krömmelbein, K. 1967. Ostracoden aus der marinen “Küsten-Kreide” Brasiliens: 2. Sergipella transatlantica n. gen. n. sp. and Aracajuia benderi n. gen. n. sp. aus dem Ober-Aptium/Albium. Senckenbergiana Lethaea, 48:525-533.
Krömmelbein, K. 1975a. African Cretaceous ostracoes and their relations to surrounding continents. In: J. Gray & A.J. Boucot, Historical biogeography, plate tectonics and the changing environment, Oregon State University Press, p.305-310.
Krömmelbein, K. 1975b. Remarks on marine Cretaceous ostracodes of Gondwanic distribution. In: 5th African Micropaleontology Colloquium, Addis–Abeba, 1972. Revista Española de Micropaleontologia, 7:539-551.
Matsuda, N. & Viviers, M.C. 1989. Caracterização do marco radiotaivo da parte superior da Formação Jandaíra na bacia Potiguar. In: XI Congresso Brasileiro de Paleontologia, 1989, Anais, Curitiba, SBP, p.1029-1041.
Miller, G.C.; Richter, M. & Do Carmo, D.A. 2002. Fish and ostracod remains from the Santos basin (Cretaceous to Recent), Brazil. Geological Journal, 37(4):297-316.
Neufville, E.M.H. 1979. Upper Cretaceous-Paleogene marine ostracods from the Sergipe-Alagoas basin, northeastern Brazil. Bulletin of the Geological Institutions of the University of Uppsala, New Series, 8:135-162.
Sampaio , A.V. & Schaller, H. 1968. Introdução à estratigrafia cretácea da Bacia Potiguar. Boletim Técnico da Petrobras, 11:19-44.
Schaller, H. 1969. Revisão estratigráfica da Bacia de Sergipe/Alagoas. Boletim Técnico da Petrobras, 12:21-86.
Stinnesbeck, W.S. & Reyment, R. 1988. Note on a further occurrence of Soudanella laciniosa Apostolescu in northeastern Brazil. Journal of African Earth Sciences, 7(5):779-781.
Tinoco, I.M., 1967. Micropaloentologia da faixa sedimentary costeira Recife-João Pessoa. Boletim da Sociedade Brasileira de Geologia, 16:81-85.
Viviers, M.C. 1990. Associações micropaleontológicas relacionadas aos fosfatos do Cretáceo Superior da bacia Potiguar, margem continental brasileira. In: XXXIV Congresso Brasileiro de Geologia, 1990, SBP, Natal, p.436-454.
Viviers, M.C. & Regali, M.P. 1987. Estudo paleoambiental preliminar do Cretáceo da Bacia Potiguar. Revista Brasileira de Geociências. 18:291-298.
Viviers, M.C.; Koutsoukos, E.A.M.; Silva-Telles Jr. A.C. & Bengtson, P. 2000. Stratigraphy and biogeographic affinities of the late Aptian-Campanian ostracods of the Potiguar and Sergipe basins in northeastern Brazil. In: E.A.M. Koutsoukos (ed.) South Atlantic Cretaceous Correlations and Biogeographic Patterns, 2 ed., London: Special Issue of Cretaceous Research, 21:407-455.