First issued in release COL21.6.
Last used in release COL23
Published in
Leven, E., & Davydov, V. Y. (2001). Stratigraphy and fusulinids of the kasimovian and lower gzhelian (upper carboniferous) in the Southwestern Darvaz (Pamir). Rivista Italiana Di Paleontologia E Stratigrafia, 107(1): 3–46. https://doi.org/10.13130/2039-4942/5422