@inproceedings{inproceedings32c5f445,
title   = {Pelecypods from the Piaui Formation (Middle Pennsylvanian), Parnaiba Basin, Brazil},
author = {Anelli, Luiz Eduardo and Rocha-Campos, A. C. and Simões, Marcello Guimarães},
year = {1994},
publisher = {Sbg},
booktitle   = {Congresso Brasileiro de Geologia}
}