La zona de Lissochonetes jachalensis-Streptorhynchus inaequiomatus (Carbonífero tardío) en la localidad de La Delfina, provincia de San Juan
AbstractA new name, Lissocbonetes jacbalensis-Streptorhynchus inaequiomasus Zone (Late Carboniferous), is proposed for the previously known as "intermediate fauna". The fossiliferous composition of severallocalities when: the mentioned zone appears is compared (Quebrada Larga, Tupe, El Imperial Pormations and equivalents). Two new species of gastropodos are described from the same zone.
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