Ippolitov, A.; Berezin, Y.; Rogov, M.; Desai, B. (2017). The first record of Late Jurassic megateuthidid belemnites - Chuvashiteuthis aenigmatica gen. et sp. nov. from the upper Kimmeridgian of Central Russia. Bulletin of Geosciences. 357-372.
The first record of Late Jurassic megateuthidid belemnites - Chuvashiteuthis aenigmatica gen. et sp. nov. from the upper Kimmeridgian of Central Russia