Fig. 7 in Early-middle Cambrian stratigraphy and faunas from northern Siberia

Fig. 7. Lingulid brachiopod Eoobolus variabilis (Pelman, 1977) from the Cambrian Emyaksin Formation, Bol'shaya Kuonamka River (A–C), Erkeket Formation, Khorbusuonka River (D–F), and Kuonamka Formation, Malaya Kuonamka River (G), Siberia, Russia; sample 7/70 (A–C), samples 19/4B, 19/66.5, 19/10.25 (D–F, respectively), and sample K1/7B (G). A, B. Ventral valves, SMNH Br151190 and 151191, respectively. C, D, F, G. Dorsal valves, SMNH Br151193–151196, respectively. F2, close-up showing brephic shell. E. Specimen with both valves preserved, view on the dorsal valve, SMNH Br151192. Scale bar: 1 mm (A–E, G), 500 µm (F1), 100 µm (F2).