Author:

Gray,J.;Colbath,G.K.;de Faria,A.;Boucot,A.J.;Rohr,D.M.

Year:

1985

Title:

Silurian age fossils from the Paleozoic Parana Basin, Southern Brazil

Reference:

Gray,J. et al. (1985) Silurian age fossils from the Paleozoic Parana Basin, Southern Brazil Geology Vol. 13 # 7 P. 521- 525

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