TY JOUR TI Numerical modelling of primary bioproductivity of the Palaeozoic pelagic ecosystems KW Palaeozoic KW palaeoecology KW modelling KW conodonts JO Vestnik of geosciences AU Zhuravlev, A.V. PY 2022 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"