Author:

Schopf,J.M.;Wilson,L.R.;Bentall,R.

Year:

1944

Title:

An annotated synopsis of Paleozoic fossil spores and the definition of generic groups.

Reference:

Schopf,J.M. et al. (1944) An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. Illinois State Geological Survey, Report of Investigations # 91 P. 1- 66

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