Author: Deflandre, G., 1945 (1963).:
Title: Microfossiles des calcaires Siluriens de la Montagne Noire.
Description: Ann. de Paléont., 31: pp. 41-75, 96 figs. on 5 pls., refs. 4to. Wrs. - "Ré-édition multicopie et illustration fac-simile." - SW Massif Central, France.

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