New brachiopod species from the order acrotretida from the Cambrian of central Kazakhstan

被引：4

作者：

Koneva, S. P. ^{[1
]}

Ushatinskaya, G. T. ^{[1
]}

机构：

[1] Russian Acad Sci, Borissiak Paleontol Inst, Moscow 117997, Russia

来源：

PALEONTOLOGICAL JOURNAL | 2010年 / 44卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

Brachiopods; acrotretids; new species; variability; Middle Upper Cambrian; Kazakhstan; LINGULATA;

D O I：

10.1134/S0031030110060043

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

Four new brachiopod species from the order Acrotretida (class Lingulata): Picnotreta saryarkensis sp. nov., Stilpnotreta propria sp. nov., Anabolotreta firma sp. nov., and Batenevotreta variabilis sp. nov. are described from the Agyrek Mountains, northeastern Central Kazakhstan from two olistoliths of limestones, which contain the uppermost Middle and lowermost Upper Cambrian fauna and are located in the Upper Ordovician olistostrome. These new species supplement the described earlier brachiopod assemblage from this region (Koneva and Ushatinskaya, 2008). Strong age and intraspecific variability of some Kazakh acrotretids is shown.

引用

页码：632 / 643

页数：12

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