▁the ▁V end ian . ▁Moscow , ▁V INIT I , ▁p .   1 - 1 2 8 . ▁( In ▁Russian ). ▁▁ 1 9 8 7 . ▁Non - ske let al ▁Fa una ▁and ▁Its ▁Place ▁in ▁the ▁E volution ▁of ▁Met az o ans . ▁Trans actions ▁of ▁the ▁Pale ont ological ▁Institute , ▁vol . ▁ 2 2 6 . ▁Moscow , ▁Nau ka , ▁p .   1 - 1 7 6 . ▁( In ▁Russian ). ▁ ▁Scient ific ▁publications ▁▁ ▁Fed on kin ▁M . A . ▁ 1 9 7 6 . ▁Tra ces ▁of ▁the ▁mult ic ell ular ▁animals ▁from ▁Val da i ▁Series . ▁Iz vest i ya ▁Akadem ii ▁Nau k ▁S SS R , ▁ser . ▁ge ol ., ▁N ▁ 4 , ▁p .   1 2 8 - 1 3 2 . ▁( In ▁Russian ). ▁ ▁K eller ▁B . M . ▁and ▁Fed on kin ▁M . A . ▁ 1 9 7 7 . ▁New ▁organ ic ▁foss il ▁finds ▁in ▁the ▁P rec amb rian ▁Val da i ▁Series ▁along ▁the ▁Sy uz ' ma ▁River . ▁Intern at . ▁Ge ol . ▁Rev ., ▁ 1 9 ( 8 ), ▁p .   9 2 4 - 9 3 0 . ▁( Trans lation ▁of ▁the ▁previous ▁paper ). ▁ ▁Fed on kin ▁M . A . ▁ 1 9 8 0 . ▁Early ▁stages ▁of ▁evolution ▁of ▁Met az oa