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The genus Iowatrypa COPPER, 1973 (Brachiopoda) in the Les Valisettes Formation (late Frasnian of the Philippeville Anticlinorium, southern Belgium)
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Iowatrypa rotundicollis n. sp., brachiopode atrypidé de la fin du Frasnien
Le genre Costatrypa COPPER, 1973 (Brachiopoda, Atrypida) dans le Frasnien du sud de la BelgiqueThe genus Costatrypa COPPER, 1973 (Brachiopoda, Atrypida) in the Frasnianof southern...
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The last Frasnian Atrypida (Brachiopoda) in southern Belgium
Two new atrypid brachiopod species from the late Frasnian of Belgium
The genus Iowatrypa Copper, 1973 (Brachiopoda) in the Les Valisettes Formation (late Frasnian of the Philippeville Anticlinorium, southern Belgium)