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The ancestry ofClimacograptus spiniferusRuedemann

 

作者: A.H.M. Vandenberg,  

 

期刊: Alcheringa: An Australasian Journal of Palaeontology  （Taylor Available online 1990）
卷期: Volume 14, issue 1  

页码: 39-51

 

ISSN:0311-5518

 

年代: 1990

 

DOI:10.1080/03115519008619005

 

出版商: Taylor & Francis Group

 

关键词: Victoria;graptolites;Climacograptusnew taxa;Climacograptuslineage;biostratigraphy;Gisbornian;Eastonian;Late Ordovician;parasicula

 

数据来源: Taylor

 

摘要:

Two new species ofClimacograptusare described from the late Gisbornian and early Eastonian (Late Ordovician) of Victoria. It is proposed that they form a lineage which can be traced fromC. bicornis tridentatusLapworth, viaC. cruciformissp. nov. andC. lanceolatussp. nov., toC. spiniferusRuedemann. A newly recognised structure, the parasicula, is described.

 

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