Geological and paleontological observations on the Ordovician from Chaschuil, Catamarca province

Abstract

?Geological and paleontological observations on the Ordovician from Chaschuil, Catamarca province?. This paper describes stratigraphical and paleontological characteristics at Ordovician outcroping beds in Chaschuil, Catamarca province, Argentina. The outcrop of the Suri Formation provides the fauna composed by Hexactinellida spicules, ef. Diplaurodonta sp. Actinodonta chaschuili nov sp. Phileta (Ozarkispira) sp.; Proterocameroceras tolai nov. sp.; ?Proterocameroceras sp.; Orthambonites mollesensis; Hesperonomia sp. Proetiella tellecheai; Colpocoryphe sp.; Hoekaspis cf. H. megacantha and Concdonts indet.