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Abstract <p>A peculiar new genus and species of Permian pectinoid <i>Streblopteria</i>-like bivalves, <i>Streblopermia minima</i> gen. et sp. nov., is described from the Lower Changhsingian (Upper Permian) deposits of the Balygychan Block (Northeast Russia). It differs from all known forms in the configuration of the shell, combined with its very small size and a very small anterior ear of the right valve with a very narrow byssal notch.</p>

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A New Genus of Streblopteria-Like Bivalves from the Late Permian of the Balygychan Block (Northeast Russia)

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • A. S. Biakov

摘要

Abstract

A peculiar new genus and species of Permian pectinoid Streblopteria-like bivalves, Streblopermia minima gen. et sp. nov., is described from the Lower Changhsingian (Upper Permian) deposits of the Balygychan Block (Northeast Russia). It differs from all known forms in the configuration of the shell, combined with its very small size and a very small anterior ear of the right valve with a very narrow byssal notch.