Eugenia BUGDAEVA, Natalia YADRISHCHENSKAYA, Alyona KURILENKO, Olga MININA, Alexei VERGUNOV, Igor KOSENKO, Solangy ONDAR & Galsan SANZHIEV
В издании Abstract Volume
Год: 2025 Страницы: 3-4
On the territory of Transbaikalia during the Early Cretaceous Epoch the West Transbaikalian Rift Region (WTRR) and East Mongolian Volcanic Belt (EMVB) developed. The Northern Biota Jehol existed in these regions. The Lower Cretaceous section of the Gusinoozersk Depression and its fossil flora are the most representative among those of the WTRR, while the section of the Turga-Kharanor depression and its flora are those of the EMVB. The existence of these floras in areas of different geological development and the impact of different geological processes likely predetermined the differences in their evolution. The change in the taxonomic composition of coal-forming plants in the Kuti Formation indicates a sharp shift in paleoenvironment, possibly caused by intense ash fallouts during the formation of the thick lower coal seam. The northern Biota Jehol finally degrades and is destroyed at this time.
