Title: Trilobity (dekhenellidy) i stratigrafiia nezhnego i srednego devona iuga Zapadnoǐ Sibiri
First published: 1968
Subjects: Geology, Geology, Stratigraphic, Paleontology, Stratigraphic Geology, Trilobites
Places: Western Siberia
Time periods: Devonian
LC classification: QE821 E44