Skip to content Skip to navigation

Article: Early Ordovician bryozoans from north-western Russia

Publication: Palaeontology
Volume: 42
Part: 1
Publication Date: January 1999
Page(s): 171 189
Author(s): Victor I. Pushkin and Leonid E. Popov
Addition Information

How to Cite

PUSHKIN, V. I., POPOV, L. E. 1999. Early Ordovician bryozoans from north-western Russia. Palaeontology42, 1, 171–189.

Online Version Hosted By

Wiley Online Library
Get Article: Wiley Online Library [Pay-to-View Access] |


A bryozoan assemblage from the Billingen Stage of north-western Russia (Ingria) is apparently the oldest known in the world. It consists of six species distributed among the trepostomate genera EsthonioporaDianulites, RevalotrypaPhragmophora and Hemiphragma. Two species are new: Phragmophora lavaense Pushkin, sp. nov. and Hemiphragma priscum Pushkin, sp. nov. The bryozoans are characteristic of the medium diversity benthic fauna of uncertain origin which migrated into the Baltic Basin during Billingen time (late Prioniodus elegans- early Oepikodus evae zones). The Billingen bryozoans have a close similarity to the late Arenig bryozoan faunas of Baltoscandia that are also dominated by trepostomates, but differ significantly from the low diversity late Arenig bryozoan assemblages of North America, Ireland, North China, Vajgach and Novaja Zemlja.
PalAss Go! URL: | Twitter: Share on Twitter | Facebook: Share on Facebook | Google+: Share on Google+