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Strophomenid and triplesiid brachiopods from an Upper Ordovician carbonate mound in central Kazakhstan

 

作者: IgorF. Nikitin,   LeonidE. Popov,  

 

期刊: Alcheringa: An Australasian Journal of Palaeontology  (Taylor Available online 1996)
卷期: Volume 20, issue 1  

页码: 1-20

 

ISSN:0311-5518

 

年代: 1996

 

DOI:10.1080/03115519608619219

 

出版商: Taylor & Francis Group

 

关键词: Middle-Upper Ordovician;Kazakhstan;Brachiopoda;Strophomenida;Triplesioidea;new taxa

 

数据来源: Taylor

 

摘要:

Ten species of strophomenid and triplesiid brachiopods are described from the Late Ordovician (late Caradoc to early Ashgill) Dulankara Regional Stage of Central Kazakhstan. They represent part of a diverse brachiopod assemblage, which was discovered in the top of a carbonate mound in the northern Betpak-Dala Desert. This brachiopod assemblage includes mostly genera not recorded previously from contemporaneous deposits in Kazakhstan, although they may be related to the long-lived lineages which appeared in the area during Llanvirn or Llandeilo. New taxa are: the plectambonitoidsBandaleta planagen. et sp. nov.,Shlyginia perplexasp. nov.,Sortanella quinquecostatagen. et sp. nov.,Anoptambonites subcarinatussp. nov.,Anisopleurella amplasp. nov.,Craspedelia roomusoksisp. nov., and triplesioidTriplesia sortanensissp. nov.

 

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