Cassidulina yabei Asano & Nakamura 1937

Image of the holotype. Test is 1.33 mm. across. Image courtesy of David B. Scott, Dalhousie University.   This image was originally published in Palaeologica Electronica, vol. 3, issue 2, and is used with the kind permission of that journal and the Paleontological Association.

Image of the holotype; aperture is at top right, and the test is 0.67 mm. across. This subspecies is distinguished by the serrated edge on its test. Image courtesy of David B. Scott, Dalhousie University.   This image was originally published in Palaeologica Electronica, vol. 3, issue 2, and is used with the kind permission of that journal and the Paleontological Association.