Results of joint research on macrofauna and conodonts are presented in the paper. Based on new data, the relationship between conodont and regional zones was established for the first time, and boundaries between the stages ...
The first records of Frasnian Rugosa from Mongolia are discussed, including Nicholsoniella golovtshenkoae sp. nov., N. hurenensis sp. nov., Aulacophyllum exiguum sp. nov. and Temnophyllum ruzhentsevi sp. nov.