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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