For citations:

Stepanova T.I. Foraminiferal complex age in the typical location of the Viseidiscus primaevus index taxon (Pronina, 1963). LITHOSPHERE (Russia). 2026;26(1):144-169. (In Russ.) https://doi.org/10.24930/2500-302X-2026-26-1-144-169. EDN: LIDZQW