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Boletim do Museu Paraense Emílio Goeldi Ciências Naturais
versão impressa ISSN 1981-8114
Resumo
COSTA, Sue Anne Regina Ferreira; RICHTER, Martha; TOLEDO, Peter Mann de e SANTOS, Heloisa Maria Moraes. Shark teeth from Pirabas Formation (Lower Miocene), northeastern Amazonia, Brazil. Bol. Mus. Para. Emilio Goeldi Cienc. Nat. [online]. 2009, vol.4, n.3, pp.221-230. ISSN 1981-8114.
The shark fauna (Chondrichthyes: Elasmobranchii) of Pirabas Formation is one of the most representative and diversified of the Neogene of South America. This fauna is associated with the early Miocene transgression resulting from the global sea level rise. In this paper, the composition of the Pirabas shark fauna is re-evaluated based on new fossil findings. The occurrence of the following taxa is confirmed: Carcharhinus sp.1, Carcharhinus sp.2, Carcharhinus cf. macloti, Carcharhinus priscus, Galeocerdo sp., Sphyrna cf. media, Hemipristis serra, Carcharodon subauriculatus, Isurus sp., Ginglymostoma sp., Nebrius obliquus.
Palavras-chave : Pirabas Formation; Chondrichthyes; Neogene; Amazonia.