FIG. 20 in New observations on Upper Devonian brachiopods from the Namur-Dinant Basin (Belgium)

FIG. 20. — Transverse serial sections of Monelasmina sp. A (IRScNB a12364), loc. BM-2002-5, Les Valisettes Formation. Numbers refer to distances in mm from the top of the ventral umbo. Scale bar: 5 mm. ; Published as part of Mottequin, Bernard, 2008, New observations on Upper Devonian brachiopods from the Namur-Dinant Basin (Belgium), pp. 455-537 in Geodiversitas 30 (3) on page 477, DOI: 10.5281/zenodo.5378729