Open AccessChondrichthyan fauna from the Pirabas Formation, Miocene of Northern Brazil, with comments on paleobiogeography
Author(s) -
Márcia Aparecida Fernandes dos Reis
Publication year - 2005
Publication title -
anuário do instituto de geociências
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.202
H-Index - 12
eISSN - 1982-3908
pISSN - 0101-9759
DOI - 10.11137/2005_2_31-58
Subject(s) - carcharias , carcharhinus , fauna , neogene , taxon , paleontology , geology , fishery , ecology , biology , juvenile , structural basin
The chondrichthyan fauna from the Pirabas Formation is redescribed.Only thirteen nominal taxa are considered valid. From these taxa, ten were reassigned to extant taxa (Carcharhinus sorrah, Carcharhinus perezii,Galeocerdo cuvier, Rhizoprionodon lalandii, Sphyrna sp., Hemipristis elongatus, Carcharodon carcharias, Isurus oxyrinchus, Nebrius ferrugineus, and indeterminate Myliobatidae), confirming the Neogene age of this formation. This elasmofauna is compared with other Caribbean and African Tertiary faunas.