Agnostids from the Upper Cambrian of Vastergotland, Sweden

被引:45
作者
Ahlberg, P [1 ]
Ahlgren, J [1 ]
机构
[1] HOGSKOLAN SKOVDE,DEPT ART & MEDIA,S-54128 SKOVDE,SWEDEN
关键词
Arthropoda; Agnostida; taxonomy; biostratigraphy; Upper Cambrian; Vastergotland; Sweden; TRILOBITES;
D O I
10.1080/11035899609546247
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Fourteen agnostid species are described from the Upper Cambrian of Vastergotland, Sweden. They are assigned to eleven genera: Agnostus, Homagnostus, Trilobagnostus, Lotagnostus, Kormagnostus, Glyptagnostus, Hypagnostus, Peratagnostus, Cristagnostus, Pseudagnostus, and Aspidagnostus. Cristagnostus and Aspidagnostus have not previously been recorded from Scandinavia. The majority of the species are from the lower part of the Upper Cambrian, i.e., the Agnostus pisiformis, the Olenus and Homagnostus obesus, and the Parabolina spinulosa Zones. Agnostids are very rare in the upper part and only three species seem to be represented, viz. Trilobagnostus rudis, T. holmi, and Lotagnostus trisectus.
引用
收藏
页码:129 / 140
页数:12
相关论文
共 68 条
[1]  
AHLBERG P, 1989, Geologiska Foreningens i Stockholm Forhandlingar, V111, P137
[2]  
Allen P.M., 1981, Proceedings of the Yorkshire Geological Society, V43, P295, DOI DOI 10.1144/PYGS.43.3.295
[3]  
Andersson A., 1985, SVERIGES GEOLOGISKA, P1
[4]  
Angelin N.P., 1851, Fascicule, V1, P1
[5]  
[Anonymous], 1987, Marine clastic sedimentology: Concepts and case studies, DOI DOI 10.1007/978-94-009-3241-8_8
[6]  
Belt T., 1867, Geological Magazine, V4, P294, DOI DOI 10.1017/S0016756800205748
[7]  
BERGSTROM J, 1980, Geologiska Foreningens i Stockholm Forhandlingar, V102, P373
[8]  
Bergstrom J., 1985, The Caledonide Orogen, P247
[9]  
Clark T. H., 1923, Canadian Field Naturalist, V37, P121
[10]  
Ergaliev G.K., 1980, TRILOBITY SREDNEGO V