Title: Biostratigrafii︠a︡ i ammonoidei verkhnego anizii︠a︡ severa Sibiri /
Authors: Konstantinov, A. G.; Dagis, A. S.
Publisher: Nauka, Sibirskoe otd-nie,
Year: 1991
Subjects: Paleontology; Paleontology Russia (Federation) Siberia; Ammonoidea Russia (Federation) Siberia.