Fig. 16. Mollusc Watsonella crosbyi Grabau, 1900 in Terreneuvian stratigraphy and faunas from the Anabar Uplift, Siberia

Fig. 16. Mollusc Watsonella crosbyi Grabau, 1900, internal moulds, from early Cambrian Medvezhya and Kugda-Yuryakh formations, Kotuj River, western Anabar Uplift, Siberia, Russia; samples 1/29.5 (A–C) and 1/29.2 (E), section 1; K2/60 (F), section 3; and M424/10 (D) from section M424. A–F. SMNH Mo182235–182237 (A–C, respectively), SMNH Mo160433 (D), SMNH Mo182238 (E), SMNH Mo182239 (F) (compare D with Kouchinsky 1999: fig. 3A–C). A1, B2, C1, D2, E1, F, lateral; A2, B1, C2, D1, E3, subapical; A3, B3, C3, D3, E2, upper views. Scale bar 1 mm.