FIG. 29 in Silurian and Devonian brachiopods from Severnaya Zemlya (Russian Arctic)

FIG. 29. — Selected transverse serial sections, illustrating in the development of internal structures in Grebenella laciniatus n. sp. (N 82/12991). Measurements: length 6.8 mm, width?, thickness?; loc. 20399, Rusanov or Al'banov formations. Numerical designations are the same as on Fig. 11. Scale bar: 1.6 mm.