Authors: SCHROEDER R DARMOIAN S A

Citation: R. Schroeder et A. Darmoian S, Gyroconulina columellifera n.ge., n.sp., a complex ataxophragmiid foraminifer from the Aqra limestone (Maastrichtian) of northern Iraq, Bollettino della Societa paleontologica italiana , 16(01), 1977, pp. 117-123