2024/12/01 by T. Yu. Tolmacheva, A. V. Dronov, Nikita Lykov · 1 voice
Earth and Planetary Sciences · Engineering · Environmental Science · #Geological Studies and Exploration #Hydrocarbon exploration and reservoir analysis #Methane Hydrates and Related Phenomena
paper · doi:10.1134/s0031030124601117
openalex publication_date 2024/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/13
Abstract The multielement apparatuses of conodonts from the upper part of the Dzherome Formation (Baksanian and Dolborian regional stages) of the Upper Ordovician strata exposed along the Moyero and Moyerokan rivers on the Siberian Platform have been reconstructed for the first time. Multielement apparatuses include 32 formal species represented by large hyaline coniform conodont elements, described by T.A. Moskalenko in the 1970s–1980s. A new genus Acanthodistacodus gen. nov. has been described. The apparatus of the Acanthodistacodus, Dolborodina, and Acanthodina tentatively consists of 17 elements that can be classified into four morphotypes: dolaborate, quadricostate, quinquicostate, and bipennate elements. The apparatus of Ac. festus Moskalenko includes at least 13 dolaborate and bipennate elements. The species of Acanthodistacodus and Acanthodina are probably endemic to the Siberian Platform; Ac. festus Moskalenko, 1973, Dol. juktaliensis (Moskalenko, 1973), and Dol. striata Moskalenko, 2003 have also been found in northeastern Russia, which indicates that this region is biogeographically similar to the Siberian Platform.