Interspecific morphological relations within the "Quadrantinodosa-stock" (Branson & Mehl, 1934)(Marginifera-zone, Upper Devonian)
Dreesen, R. (1976). Interspecific morphological relations within the "Quadrantinodosa-stock" (Branson & Mehl, 1934)(Marginifera-zone, Upper Devonian). Ann. Soc. géol. Belg. (1968) 99(2): 511-529, 1 hors-texte
In: Annales de la Société géologique de Belgique. Vaillant-Carmanne: Liège. ISSN 0037-9395, more
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