A. M. Obut

Graptolity i stratigrafii͡a nizhn...

Graptolity i stratigrafii͡a nizhnego silura okrainnykh podni͡atiĭ Kolymskogo massiva

Year unknown

Graptolity, konodonty i stratigra...

Graptolity, konodonty i stratigrafii︠a︡ silura, nizhnego devona Severnogo Kavkaza

Year unknown E. A. Elkin and A. M. Obut

Graptolity llandoveri v kernakh b...

Graptolity llandoveri v kernakh burovykh skvazhin Norilʹskogo raĭona

Year unknown

Graptolity ordovika Taĭmyra

Graptolity ordovika Taĭmyra

Year unknown

Graptolity rannego silura v Kazak...

Graptolity rannego silura v Kazakhstane

Year unknown

Graptolity silura Taĭmyra

Graptolity silura Taĭmyra

Year unknown

Ordovik Sibirskoĭ platformy

Ordovik Sibirskoĭ platformy

Year unknown A. M. Obut and A. V. Kanygin

Ordovik zapadnoĭ chasti Irkutskog...

Ordovik zapadnoĭ chasti Irkutskogo amfiteatra

Year unknown

Siluriĭskai︠a︡ sistema

Siluriĭskai︠a︡ sistema

Year unknown O. I. Nikiforova and A. M. Obut

Stratigrafi͡ia i fauna ordovika i...

Stratigrafi͡ia i fauna ordovika i silura Chukotskogo poluostrova

Year unknown

The Carboniferous of Omolonian an...

The Carboniferous of Omolonian and South-Western Part of Kolymian Massifs

Year unknown