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Stratigrafičeskie pereryvy v nižnesredneordovikskih otloženiâh severo-zapada Russkoj plity [Стратиграфические перерывы в нижнесреднеордовикских отложениях северо-запада Русской плиты]
Zaitsev, A. V., Baraboshkin, E. Yu.
Vestnik Moskovskogo Universiteta. Seria 4. Geologia
Year: 2006 | Volume: 4 | Pages: 16-24 | article in journal
Billingen Stage
Meidla, T.
Geology and Mineral Resources of Estonia
Year: 1997 | Pages: 60-61 | article in book
The trilobite zonation of the Billingen Stage in the East Baltic
Pärnaste, H.
WOGOGOB-2004 Conference Materials. Abstracts and Field Guidebook
Year: 2004 | Pages: 81-82 | abstract
Phosphatized burrows from the basal layer of the “Glauconite Sandstone” (Billingen Regional Stage) of the Tosna River
Fedorov, P., Ershova, V.
WOGOGOB-2004 Conference Materials. Abstracts and Field Guidebook
Year: 2004 | Pages: 33-33 | article in book
Pilguheit paesse: püstakkiht Billingeni ja Volhovi lademe piiril
Einasto, R., Justi, J.-L.
Keskkonnatehnika
Year: 2011 | Pages: 42-43 | article in journal
The Ordovician Billingen/Volkhov boundary interval (Arenig) at Lava River, northwestern Russia
Tolmacheva, T., Fedorov, P.
Norsk Geologisk Tidsskrift
Year: 2001 | Volume: 81 | Pages: 161-168 | article in journal
Composition of clay minerals in the Lower Orgovician (the Varangu, Hunneberg and Billingen regional stages) sediments from the Putilovo Quarry
Ershova, V. B.
The Sixth Baltic Stratigraphical Conference, August 23-25, St. Petersburg, Russia: Abstracts
Year: 2005 | Pages: 26-27 | article in book
Revision of the type species of Acrotreta and related Lingulate brachiopods
Holmer, L. E., Popov, L. E.
Journal of Paleontology
Year: 1994 | Volume: 68 | Pages: 433-450 | article in journal
Early Ordovician bryozoans from north-western Russia
Pushkin, V. I., Popov, L. E.
Palaeontology
Year: 1999 | Volume: 42 | Pages: 171-189 | article in journal
Early-Middle Ordovician (Billingen- Volkhov stages) Orthide and Protorthide brachiopods from the East Baltic
Egerquist, E., Holmer, L. E.
GFF
Year: 2006 | Volume: 128 | Pages: 339-348 | article in journal
New brachiopods from the Lower-Middle Ordovician (Billingen-Volkhov stages) of the East Baltic
Egerquist, E.
Acta Palaeontologica Polonica
Year: 2003 | Volume: 48 | Pages: 31-38 | article in journal
The Lower Ordovician trilobite Krattaspis: the earliest cyrtometopinid (Cheiruridae) from the Arenig of the east Baltic
Pärnaste, H.
Special Papers in Palaeontology
Year: 2003 | Volume: 70 | Pages: 241-257 | article in journal