Microfossils in cherts from the Mesoproterozoic (Middle Riphean) Debengda Formation, the Olenek Uplift, northeastern Siberia [0.03%]
西伯利亚东北部奥伦克高地中元古代（中太古界）德贝涅达组燧石中的微体化石
V N Sergeev,A H Knoll,S P Kolosova et al.
V N Sergeev et al.
Silicified shallow-water marine carbonate deposits of the Proterozoic Debengda Formation (the Olenek Uplift, northeastern Siberia) contain well preserved microfossils. One or two distinct assemblages consists only of filamentous Siphonophyc...