Description Spiroplectammina optata ksenevae Podobina, 2021, holotype. Fig. 5a, lateral view. Fig. 5b, apertural view. Well 1-r, depth 718.37–712.27 m, Ambarskaya area, Tomsk region, Western Siberia; Slavgorod horizon, lower Campanian, Upper Cretaceous. Holotype nr. 1287a in the Micropaleontology laboratory of the Siberian Paleontological Research Center, Tomsk State University. Drawings by the artist O.M. Lozovaya; from Podobina (2021).Author Pignatti, JohannesJPG file - 137.92 kB - 448 x 259 pixelsadded on 2024-04-2573 viewsForaminifera taxaScan of drawingSpiroplectammina optata subsp. ksenevae Podobina, 2021 †checked Pignatti, Johannes 2024-04-25Download full size This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License