Fusulinoideans from the early Midian (late Middle Permian) Metadoliolina dutkevitchi-Monodiexodina sutchanica Zone of the Senkina Shapka section, South Primorye, Far East Russia.

摘要

Fusulinoideans from the Zone of the lower part of the Chandalaz Formation in the Senkina Shapka section in South Primorye, Far East Russia, are described. The fusulinoidean zone is assigned to the early Midian (=Capitanian: late Middle Permian) based mainly on the morphologie and biostratigraphic characteristics of . Previously, a Midian age has been established for the Zone by the coexistence of species. However, the occurrence of with the two zonal species in this area has not been verified by the illustration of specimens. We examined a fusulinoidean-bearing sample from the -Zone, and three fusulinoidean species, , sp. and , are de-scribed and illustrated.