Fig. 5 in Early-middle Cambrian stratigraphy and faunas from northern Siberia

Fig. 5. Lingulid brachiopod Eoobolus priscus (Poulsen, 1932) from the lower Cambrian Emyaksin Formation, Bol'shaya Kuonamka River, Siberia, Russia; samples 6/66.2 (A–I, L) and 7/55 (J, K). A–E, L. Ventral valves, SMNH Br151173–151177, 151272, respectively. E2, close up of E1; L2, L3, close-ups of the brephic shell. F–K. Dorsal valves, SMNH Br151178–151183, respectively. Scale bar: 1 mm (A–E1, F–K), 500 µm (L1), 250 µm (E2), 60 µm (L2), and 8 µm (L3).