Iakovleva, Alina I. A new paleogene micropaleontological and palaeogeographical data in the Petchora depression, northeastern European Russia - Paris Académie des Sciences|Elsevier Avril 2000 - pp. 485-491 ilus., tbls. Subjects--Topical Terms: DIATOMEASDINOFLAGELLATAESTRATIGRAFÍAFORAMINIFERAPALEOGENOPALEOGEOGRAFIA Subjects--Geographic Terms: RUSIA