Columbia subject headings:
Bivalves, Fossil--Russia (Federation)--Siberia.
Brachiopoda, Fossil--Russia (Federation)--Siberia.
Paleontology--Cambrian.
Paleontology--Russia (Federation)--Siberia.
Harvard subject headings:
Princeton subject headings:
Brachiopoda--Russia (Federation)--Siberia.
Mollusks, Fossil--Russia (Federation)--Siberia.
Paleontology--Cambrian.
Paleontology--Russia (Federation)--Siberia.