Author:

Cramer,F.H.;Diez,M.D.C.R.

Year:

1974

Title:

Silurian acritarchs

Reference:

Cramer,F.H. et al. (1974) Silurian acritarchs Review of Palaeobotany and Palynology Vol. 18 # 1 P. 137- 154

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