Fig. 48 in Early-middle Cambrian stratigraphy and faunas from northern Siberia

• Main Authors: 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.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2022
• Subjects: Biodiversity; Taxonomy; Animalia; Triplicatellidae; Triplicatella; lena river; Siberia
• Online Access: https://doi.org/10.5281/zenodo.12198351

Fig. 48. Hyolith opercula "Orthothecid operculum type B", from the lower Cambrian Erkeket Formation, Khorbusuonka River (A, C–F) and Tyuser Formation, lower reaches of the Lena River (B), Siberia, Russia; samples 11/16.5 (A, C, F), 11/2B (D, E), and 21/21 (B). A–D. Phosphatised opercula, SMNH X11190–11193, respectively. E, F. Phosphatised opercula of presumably the same species, SMNH X11194 and 11195, respectively. A1, D3, F2, outer surface; A2, B2, F3, oblique lateral; D2, E2, lateral; A3, D1, F1, dorsal; B1, E1, inner surface views. Scale bar: 500 µm (A–E, F2, F3) and 250 µm (F1). 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 409, DOI:10.4202/app.00930.2021, http://zenodo.org/record/12198251