Fig. 8. Lingulid brachiopod Homotreta gorjanskii (Pelman, 1973) from the middle Cambrian Kuonamka Formation, Malaya Kuonamka and Bol'shaya Kuonamka rivers, Siberia, Russia; samples 1/28 (A, B) and 1/22 (H) and samples 8/14.8 (C, D), 8/18.5 (F), and 8/23.1 (E, G). A–D. Specimens with both valves preserved, SMNH Br151197–151200, respectively. A1, B1, lateral; A2, B3, D1, posterior; and B2, ventral views; C, D2, view on the ventral valve showing brephic shell. E–G. Ventral valves, SMNH Br151201–151203, respectively. H. Ventral valves, SMNH Br151204, sagittal cross-section showing lamination. Scale bar: 1 mm (E–G), 500 µm (H), 250 µm (A, B, D1), 125 µm (C), 60 µm (D2).

Published as part of Kouchinsky, Artem, Alexander, Ruaridh, Bengtson, Stefan, Bowyer, Fred, Clausen, Sébastien, Holmer, Lars E., Kolesnikov, Kirill A., Korovnikov, Igor V., Pavlov, Vladimir, Skovsted, Christian B., Ushatinskaya, Galina, Wood, Rachel & Zhuravlev, Andrey Y., 2022, Early-middle Cambrian stratigraphy and faunas from northern Siberia, pp. 341-464 in Acta Palaeontologica Polonica 67 (2) on page 359, DOI: 10.4202/app.00930.2021, http://zenodo.org/record/12198251