Fig. 2 in A new genus of terebratulid brachiopod from the Siegenian of the Rheinisches Schiefergebirge

Fig. 2. Morphological terms of Crassirensselaeria crassicosta (Koch, 1881). A. Internal mould of articulated specimen (lectotype, MB.B 2090.1). Posterior view. Crural plates, dental plates, dorsal and ventral median septum preserved as negative forms. B. Latex cast of internal mould of articulated specimen (MBG 5083). Interior of posterior portions of both valves. Drawings by M.S.−G.