FIG. 15 in Silurian and Devonian brachiopods from Severnaya Zemlya (Russian Arctic)

FIG. 15. — Selected transverse serial sections, illustrating the development of internal structures in Lenatoechia octjabrensis n. sp. (N 43/12991). Measurements: length 8.1 mm, width 8.2 mm, thickness 5.9 mm; loc. 2, bed 66, Samojlovich Formation. Numerical designations are the same as on Fig. 11. Scale bar: 3 mm.