1.
Description de quelques brachiopodes Spinocyrtiidae (Spiriferida) du Dévonien inférieur de Belgique = Description of some spinocyrtiid brachiopods (Spiriferida) from the Lower Devo...
2.
3.
4.
5.
6.
7.
8.
9.
Two new spinocyrtiid brachiopods (Spiriferida) from the Pragian and the Lower Emsian of Belgium