INVESTIGADORES
WAISFELD Beatriz Graciela
artículos
Título:
La Fauna de Neseuretus en la Formación Suri, Oeste de Argentina: edad y relaciones paleobiogeográficas
Autor/es:
VACCARI, N.E. ; BENEDETO, J.L. ; WAISFELD, B.G.; SÁNCHEZ, T.M.
Revista:
Spanish Journal of Palaeonotlogy
Editorial:
Sociedad Española de Paleontología
Referencias:
Lugar: Madrid; Año: 1993 vol. 8 p. 185 - 190
ISSN:
0213-6937
Resumen:
TheOrdovician sequence of the Famatina mountain belt consists of shales overlainby sandstones with interbedded shell beds containing mainly brachiopods,trilobites, and pelecypods. Trilobite fauna of the lower shales is composed byCarolinites genacinaca, Oopsites sp., Merlinia zupaya, and Ampyxtinogastaensis. Theupper coquinas are characterized by the genera Annamitella,Merlinia, Neseuretus, Desmorthis, Monorthis, Paralenorthis, Famatinorthis,Tritoechia, Skenidioides, Redonia, and Catamarcaia. Paleontological evidence indicatethe Suri Formation is Middle-Late Arenig in age. From a biogeographicalviewpoint, the Neseuretus Fauna of the Famatina Range shows affinities with theNorthwestern basin of Argentina. The presence of the trilobite Annamitella andassociated brachiopods also suggest affinities with the Precordillera basin.
