Template:Ruzhentsev & Sarycheva, 1965

• Ruzhentsev, V.E. & Sarycheva, T.G. 1965. Razvitiye i smena morskikh organizmov na rubezhe paleozoya i mezozoya [Development and change of marine organisms at the turn of the Paleozoic and Mesozoic]. Trudy Paleontologicheskogo instituta Akademii Nauk SSSR 108: 1–431. [in Russian]  
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