I︠U︡. A. Orlov

• Fundamentals of paleontology =
• Fundamentals of paleontology =
• Khishchnye deinotsefaly fauny Isheeva (Titanozukhi)
• Khishchnye deĭnot︠s︡efaly fauny isheeva (Titanozukhi)
• Osnovy paleontologii
• Paleontologii︠a︡ bespozvonochnykh
• V mire drevnikh zhivotnykh