Revision of the type material of dispersed cordaitean fructifications of Krylovia Chachlov 1939 supports previously proposed morphological interpretation and its identity to the genus Samarospadix Neuburg, 1948 from the ...
An abrupt change in the coal-producing plants is established near the boundary between the Tal'bei and Seida formations and their analogs in the Pechora coal basin and the Cis-Urals. Predominant among plant remains of coal ...