INVESTIGADORES
BERESI Matilde Sylvia
artículos
Título:
NAUTILOID CEPHALOPOD CONCENTRATION BEDS IN THE SAN JUAN FORMATION (MIDDLE DARRIWILIAN: YANGTZEPLACOGNATHUS CRASSUS ZONE) OF THE ARGENTINE PRECORDILLERA
Autor/es:
MESTRE A.; BERESI, M. S.; HEREDIA S.
Revista:
PUBLICACION ESPECIAL - ASOCIACION PALEONTOLOGICA ARGENTINA
Editorial:
ASOCIACIÓN PALEONTOLÓGICA ARGENTINA
Referencias:
Lugar: Buenos Aires; Año: 2013 vol. 13 p. 73 - 78
ISSN:
0328-347X
Resumen:
Concentrations of orthoconic nautiloid cephalopods on bedding planes of the San Juan Formation limestones are for first time associated to the Yangtzeplacognathus crassus Zone (Middle Ordovician). Nautiloid cephalopod accumulations occur at several localities in the Central and Eastern Precordillera of San Juan, western Argentina. The objective of this report consists in registering Precordilleran nautiloid concentrations in the Y. crassus Zone from the shallow warm waters of the carbonate platform.
