Borissiak, M. A. (1972). New representatives of the Late Ordovician orthides from the Tarbagatai Range. pp. 174-177. In: V. Zanina (Ed.). Novyie vidy drevnikh rastenii i bespozvonochnykh SSSR. Nauka Publishing House, Moscow.
482226
Borissiak, M. A.
1972
New representatives of the Late Ordovician orthides from the Tarbagatai Range. pp. 174-177. In: V. Zanina (Ed.)
Novyie vidy drevnikh rastenii i bespozvonochnykh SSSR