Paraquay and Uruguay. (In: The Carboniferous of the World II. Australia, Indian Subcontinent, South Africa, South America and North Africa. C. Martnez Daz et al, editors)
Reference:
Rocha-Campos,A.C. (1985)
Paraquay and Uruguay. (In: The Carboniferous of the World II. Australia, Indian Subcontinent, South Africa, South America and North Africa. C. Martnez Daz et al, editors) The Carboniferous of the World - Volume 2: Australia, Indian Subcontinent, South Africa, South America and North Africa. IUGS Monographs
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