Radiolaria from the lower Cenomanian (Upper Cretaceous) of Crimea. Part 1. Spumellaria. Revue de Micropaleontologie, 67, Jul 2020: 1-23. 13 [Zoological Record Volume 156]
Reprint of 'Radiolaria from the lower Cenomanian (Upper Cretaceous) of Crimea. Part 1. Spumellaria'. Revue de Micropaleontologie, 69, Dec 2020: 1-20. 13 [Zoological Record Volume 157]