Fig. 5 in Early-Middle Frasnian cyrtospiriferid brachiopods from the East European Platform

Fig. 5. Cyrtospiriferids from Middle Frasnian of the Main and Central Devonian Fields. A, B. Cyrtospirifer schelonicus (Nalivkin, 1941), Svinord Beds, Main Devonian Field. A. CNIGR 2/13157, ventral (A1), dorsal (A2), posterior (A3), anterior (A4), and lateral (A5) views. B. CNIGR 3/13157, ventral (B1), dorsal (B2), posterior (B3), anterior (B4), and lateral (B5) views. C, D. Cyrtospirifer rudkinensis Ljaschenko, 1959, Semiluki Horizon, Central Devonian Field. C. CNIGR 4/13157 ventral (C1), dorsal (C2), posterior (C3), anterior (C4), and lateral (C5) views. D. CNIGR 5/13157 ventral (D1), dorsal (D2), posterior (D3), anterior (D4), and lateral (D5) views.