@article{journal,
author = {Sarmiento, G.},
title = {Conodontos ordov{\'i}cicos de Argentina},
year = {1990},
volume = {1},
pages = {135--161},
journal = {Treballs del Museu de Geologia de Barcelona},
keywords = {Conodontos, Ordov{\'i}cico, Argentina, Correlaci{\'o}n intercontinental}
}