Abstract :
[en] Two new species of atrypid brachiopods from the late Frasnian Lambermont and Barvaux formations of Belgium are described (south-east border of the Dinant and the Vesdre Nappe), Iowatrypa ultima n. sp. and Spinatrypa (Spinatrypa) lambermontensis n. sp. These species rank among the last representatives of the order Atrypida in the Ardennes (Upper Palmatolepis rhenana Zone).
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