[F] Bauru Basin - Brazil
Brazil
The Bauru Basin (Cretaceous), located in southeastern Brazil, occupies an area of 370,000 km. During the South Atlantic opening the continental rupture originated this inland basin by the process of thermo-mechanical subsidence (Fernandes and Coimbra, 1996, 1999; Fulfaro et al., 1994) of volcanic rock. It comprises a Cretaceous sequence, with at least 300 meters of siliciclastic sediments.
The age of the Bauru Basin ranges from Aptian to Maastrichtian (Fulfaro et al., 1994) and there are different proposals to the lithostratigraphy (Soares et al., 1980; Fernandes and Coimbra, 1992, 1996).The Bauru Basin sediments are generally included in the Caiuá and Bauru groups, although some authors (Fulfaro et al.,1999) proposed that the Caiuá Group is part of a separated pre- Bauru Basin of Aptian-Albian age, named Caiuá Basin.
The Bauru Group was divided by Fernandes and Coimbra (1996) in three formations, namely Adamantina, Uberaba and Marília. The Adamantina Formation (Turonian-Santonian age, Castro et al., 1999; Dias-Brito et al., 2001) is a sequence of fine sandstones intercalated by mudstones, siltstones and clayish sandstones.
The lowermost part of this unit was redefined by Batezelli et al. (1999) as the Araçatuba Formation. The Uberaba Formation (Coniacian- Campanian, Goldberg and Garcia, 2000) is composed of fine greenish sandstones interbedded by siltstones, coarse sandstones, mudstones and volcanoclastics. The Marilia Formation was formally proposed by Soares et al. (1980) as a sequence of coarse to conglomeratic sandstones, mudstones and carbonate levels.
The sandstones are mainly classified as subfeldsarenites and feldspathic litarenites (Garcia et al., 1999; Alves and Ribeiro, 1999; Andreis et al., 1999). The age of these deposits based on the abundant vertebrate fauna is considered as Campanian-Maastrichtian (Bertini, 1993). Dias-Brito et al. (2001) based on charophyte and ostracods, established a Maastrichtian age. Carvalho, Campos & Henrique, 2005
Adamantisaurus mezzalirai - Adamantina Formation - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Antarctosaurus brasiliensis - Estado do Goias; Estado do Sao Paulo; Estado do Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Baurutitan britoi - State of Minas Gerais - Sauropoda Titanosauria - Cretaceous Late
Gondwanatitan faustoi - Alvares Machado region (State of São Paulo) - Sauropoda Titanosauria - Cretaceous Late
Maxakalisaurus topai - Serra da Boa Vista, Minas Gerais state - Sauropoda Titanosauria - Cretaceous Late Campanian
Pycnonemosaurus nevesi - Theropoda Abelisauridae - Cretaceous Late
Trigonosaurus pricei - Minas Gerais - Sauropoda Titanosauria - Cretaceous Late
Uberabatitan ribeiroi - Marilia Formation - Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Maastrichtian
cf. Titanosaurus sp. - Estado do Goias - Sauropoda Titaosauridae - Cretaceous Late Campanian Maastrichtian
Theropoda indet. - Estado do Goias - Theropoda - Cretaceous Late Campanian Maastrichtian
Theropoda indet. - Estado do Matto Grosso - Theropoda - Cretaceous Late Campanian Maastrichtian
Dinosaur eggshell - Estado do Minas Gerais - Dinosauria - Cretaceous Late Campanian Maastrichtian
cf. Titanosaurus sp. - Estado do Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Theropoda indet. (2 species) - Estado do Minas Gerais - Theropoda indet. - Cretaceous Late Campanian Maastrichtian
Titanosaurid indet. - Estado do Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Undescribed titanosaurid (Powell, 1986) - Estado do Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
cf. Titanosaurus sp. - Estado do Parana - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Theropoda indet. - Estado do Parana - Theropoda - Cretaceous Late Campanian Maastrichtian
cf. Titanosaurus sp. - Estado do Sao Paulo - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Theropoda indet. - Estado do Sao Paulo -Theropoda indet. - Cretaceous Late Campanian Maastrichtian
Titanosaurus indet. - Estado do Sao Paulo - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
The Bauru Basin (Cretaceous), located in southeastern Brazil, occupies an area of 370,000 km. During the South Atlantic opening the continental rupture originated this inland basin by the process of thermo-mechanical subsidence (Fernandes and Coimbra, 1996, 1999; Fulfaro et al., 1994) of volcanic rock. It comprises a Cretaceous sequence, with at least 300 meters of siliciclastic sediments.
The age of the Bauru Basin ranges from Aptian to Maastrichtian (Fulfaro et al., 1994) and there are different proposals to the lithostratigraphy (Soares et al., 1980; Fernandes and Coimbra, 1992, 1996).The Bauru Basin sediments are generally included in the Caiuá and Bauru groups, although some authors (Fulfaro et al.,1999) proposed that the Caiuá Group is part of a separated pre- Bauru Basin of Aptian-Albian age, named Caiuá Basin.
The Bauru Group was divided by Fernandes and Coimbra (1996) in three formations, namely Adamantina, Uberaba and Marília. The Adamantina Formation (Turonian-Santonian age, Castro et al., 1999; Dias-Brito et al., 2001) is a sequence of fine sandstones intercalated by mudstones, siltstones and clayish sandstones.
The lowermost part of this unit was redefined by Batezelli et al. (1999) as the Araçatuba Formation. The Uberaba Formation (Coniacian- Campanian, Goldberg and Garcia, 2000) is composed of fine greenish sandstones interbedded by siltstones, coarse sandstones, mudstones and volcanoclastics. The Marilia Formation was formally proposed by Soares et al. (1980) as a sequence of coarse to conglomeratic sandstones, mudstones and carbonate levels.
The sandstones are mainly classified as subfeldsarenites and feldspathic litarenites (Garcia et al., 1999; Alves and Ribeiro, 1999; Andreis et al., 1999). The age of these deposits based on the abundant vertebrate fauna is considered as Campanian-Maastrichtian (Bertini, 1993). Dias-Brito et al. (2001) based on charophyte and ostracods, established a Maastrichtian age. Carvalho, Campos & Henrique, 2005
Adamantisaurus mezzalirai - Adamantina Formation - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Antarctosaurus brasiliensis - Estado do Goias; Estado do Sao Paulo; Estado do Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Baurutitan britoi - State of Minas Gerais - Sauropoda Titanosauria - Cretaceous Late
Gondwanatitan faustoi - Alvares Machado region (State of São Paulo) - Sauropoda Titanosauria - Cretaceous Late
Maxakalisaurus topai - Serra da Boa Vista, Minas Gerais state - Sauropoda Titanosauria - Cretaceous Late Campanian
Pycnonemosaurus nevesi - Theropoda Abelisauridae - Cretaceous Late
Trigonosaurus pricei - Minas Gerais - Sauropoda Titanosauria - Cretaceous Late
Uberabatitan ribeiroi - Marilia Formation - Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Maastrichtian
cf. Titanosaurus sp. - Estado do Goias - Sauropoda Titaosauridae - Cretaceous Late Campanian Maastrichtian
Theropoda indet. - Estado do Goias - Theropoda - Cretaceous Late Campanian Maastrichtian
Theropoda indet. - Estado do Matto Grosso - Theropoda - Cretaceous Late Campanian Maastrichtian
Dinosaur eggshell - Estado do Minas Gerais - Dinosauria - Cretaceous Late Campanian Maastrichtian
cf. Titanosaurus sp. - Estado do Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Theropoda indet. (2 species) - Estado do Minas Gerais - Theropoda indet. - Cretaceous Late Campanian Maastrichtian
Titanosaurid indet. - Estado do Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Undescribed titanosaurid (Powell, 1986) - Estado do Minas Gerais - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
cf. Titanosaurus sp. - Estado do Parana - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Theropoda indet. - Estado do Parana - Theropoda - Cretaceous Late Campanian Maastrichtian
cf. Titanosaurus sp. - Estado do Sao Paulo - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian
Theropoda indet. - Estado do Sao Paulo -Theropoda indet. - Cretaceous Late Campanian Maastrichtian
Titanosaurus indet. - Estado do Sao Paulo - Sauropoda Titanosauria - Cretaceous Late Campanian Maastrichtian