Middle and Upper Triassic spiriferinid brachiopods from the Canadian Arctic Archipelago - Logan, A. (Ottawa : Department of energy, mines and resources Canada, 1967)
Keywords: fosilní ramenonožci; ramenonožci; střední trias; svrchní trias; Brachiopoda; fossil Brachiopoda; middle triassic; upper triassic; Arktida; Arctic regions; bulletiny; information bulletins