Olenus henningsmoeni, a new trilobite from the Upper Cambrian of Vastergotland, Sweden

被引：5

作者：

Ahlgren, J ^{[1
]}

Ahlberg, P ^{[1
]}

机构：

[1] DEPT GEOL, S-22362 LUND, SWEDEN

来源：

GFF | 1996年 / 118卷

关键词：

Trilobita; Olenidae; Olenus; Parabolina; taxonomy; new species; Upper Cambrian; Billingen; Kinnekulle; Vastergotland; Sweden;

D O I：

10.1080/11035899609546231

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A new species of olenid trilobites, Olenus henningsmoeni n. sp., is described from the Upper Cambrian Olenus/Agnostus (Homagnostus) obesus Zone of Kinnekulle and Billingen in Vastergotland, Sweden. It is closely comparable to O. gibbosus and O. transversus, but differs in having 19 thoracic segments with long pleural spines. The large number of thoracic segments may indicate that it was derived by peramorphosis. A species of Parabolina from the Olenus/Agnostus (Homagnostus) obesus Zone is figured.

引用

页码：73 / 77

页数：5

共 8 条

[1]

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[2]

Clarkson Euan N.K., 1995, Geology Today, V11, P147

[3]

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[4]

McNamara K., 1988, HETEROCHRONY EVOLUTI, P287

[5] THE ROLE OF HETEROCHRONY IN THE EVOLUTION OF CAMBRIAN TRILOBITES [J].

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[6]

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[7]

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[8]

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