Author:

Hall,J.W.

Year:

1963

Title:

Megaspores and other fossils in the Dakota Formation, (Cenomanian), of Iowa, USA.

Reference:

Hall,J.W. (1963) Megaspores and other fossils in the Dakota Formation, (Cenomanian), of Iowa, USA. Pollen et Spores Vol. 5 # 2 P. 425- 443

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