Wernli, R.; Metzger, J. (1990). Callorbis minor, ng, nsp, a new foraminifer from the echinodermic limestones of the Bajocian of the Jura mountains (France). Eclogae Geologicae Helvetiae. 83: 163-175.
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Wernli, R.; Metzger, J.
1990
Callorbis minor, ng, nsp, a new foraminifer from the echinodermic limestones of the Bajocian of the Jura mountains (France)