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Asteriacites lumbricalisvon schlotheim 1820: Ophiuroid trace fossils from the lower triassic thaynes formation, central Utah

 

作者: MarkA. Wilson,   J. Keith Rigby,  

 

期刊: Ichnos  （Taylor Available online 2000）
卷期: Volume 7, issue 1  

页码: 43-49

 

ISSN:1042-0940

 

年代: 2000

 

DOI:10.1080/10420940009380145

 

出版商: Taylor & Francis Group

 

关键词: Asteriacites;ophiuroids;Lower Triassic;Thaynes Formation;Utah;extinction recovery

 

数据来源: Taylor

 

摘要:

Several trace fossils of burrowing ophiuroids,Asteriacites lumbricalisvon Schlotheim 1820, occur on slabs of thinly‐bedded silty limestone in the lower Spathian part of the Lower Triassic Thaynes Formation in central Utah. This is the first record ofAsteriacitesin the Lower Triassic of North America. Their occurrence adds information to studies of the recovery of marine faunas following the Permian extinctions, including the oxygénation of benthic sediments.

 

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