Momarhynchus , new Lower Famennian Rhynchonellid Brachiopod genus from Yakutia

A new rhynchonellid genus, Momarhynchus , with type species M. indigirkaensis n. sp., is described from the lower Famennian of eastern Yakutia, Russia, North-East Asia. The new genus and the new species allow us to better define the so-called Leiorhynchus ursus Zone in the area concerned. This zone,...

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Bibliographic Details
Main Authors: Baranov, V.V., Sartenaer, P.
Format: Article in Journal/Newspaper
Language:English
Published: 1996
Subjects:
Famennian
Brachiopoda [Lamp shells]
Momarhynchus
Rhynchonellida
Asia
Russia
Yakutia
Online Access:https://www.vliz.be/imisdocs/publications/255738.pdf
Description
Summary:A new rhynchonellid genus, Momarhynchus , with type species M. indigirkaensis n. sp., is described from the lower Famennian of eastern Yakutia, Russia, North-East Asia. The new genus and the new species allow us to better define the so-called Leiorhynchus ursus Zone in the area concerned. This zone, also referred to as the Zigania ursa Zone, is recognized over a wide territory of the former USSR, and is included in some Regional Unified Stratigraphical Schemes; its understanding is unfortunately hampered by technicalities.

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