Author:

Stainforth,R.M.

Year:

1966

Title:

Occurrence of pollen and spores in the Roraima Formation of Venezuela and British Guiana

Reference:

Stainforth,R.M. (1966) Occurrence of pollen and spores in the Roraima Formation of Venezuela and British Guiana Nature Vol. 210 # 5033 P. 292- 294

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