Protozoa. Order Fusulinida. Development and change in marine organisms of the Palaeozoic and Mesozoic boundary., Ruzhentzev, V. E. & Sarycheva, T. G. [Edits.] Development and change in marine organisms of the Palaeozoic and Mesozoic boundary. Trudy paleont. Inst. 108. [In Russian]", 1965: pp. 137-146. Chapter pagination: pp. 137-146. 138 [Zoological Record Volume 102]