Fig. 6. Middle Lower Devonian rhenorensselaeriid brachiopod Rhenorensselaeria demerathia Simpson, 1940 from Germany. A in A new genus of terebratulid brachiopod from the Siegenian of the Rheinisches Schiefergebirge

Fig. 6. Middle Lower Devonian rhenorensselaeriid brachiopod Rhenorensselaeria demerathia Simpson, 1940 from Germany. A. Holotype. Internal mould of articulated specimen (SMF XVII 687 n). Saxler Beds (upper parts of Upper Siegen Beds) of a quarry 3/4 km north of Demerath, Eifel area, topographical mapsheet 1:25 000 Gillenfeld 5807. In posterior (A1) and lateral (A2) views. B. Internal mould of articulated specimen (SMF XVII 687 o) and latex cast. Saxler Beds of a quarry 3/4 km north of Demerath, Eifel area, topographical mapsheet 1:25 000 Gillenfeld 5807. Internal mould, posterior view (B1); latex cast, interior of posterior portions of both valves (B2). C. Internal mould of articulated specimen (SMF 26340 a) and latex cast. Saxler Beds of south of Meiserich, point 367,8, Eifel area, topographical mapsheet 1:25 000 Gillenfeld 5807. Internal mould, posterior view (C1); latex cast, interior of posterior portions of both valves (C2). D. Internal mould of ventral valve (SMF XVII 687 r). Upper Siegen Beds of Auderather Mühle, Ollenbach, Eifel area, topographical mapsheet 1:25 000 Gillenfeld 5807. Oblique posterior view.