Author(s): Costa, Sue Anne Regina Ferreira da ; Richter, Martha ; Toledo, Peter Mann de ; Moraes-Santos, Heloisa Maria
Date: 2010
Origin: Oasisbr
Subject(s): Pirabas Formation; Chondrichthyes; Neogene; Amazônia; Formação Pirabas (PA); Pirabas Formation; Pirabas Formation; Chondrichthyes; Chondrichthyes; Neogene; Neogene; Amazônia; Amazônia; Formação Pirabas (PA); Formação Pirabas (PA)
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.
