英国坎布里亚郡Janny Wood的布里甘层型剖面的小孢子

IF 0.5 4区地球科学 Q4 GEOLOGY

Proceedings of the Yorkshire Geological Society Pub Date : 2018-08-31 DOI:10.1144/PYGS2017-004

Society D. McLean, B. Owens, David J. Bodman, F. McLean

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引用次数: 7

摘要

英国坎布里亚郡Janny Wood布里甘阶层型剖面中Robinson灰岩与Peghorn灰岩之间的小孢子被划分为triparties vetustus-Rotaspora fracta (VF)组合生物带。此外，还记录了通常被认为局限于下缘黑藓-边缘triquitites (NM)生物带的孤雌藓属(Murospora parthenopia)。从地层学上最深的样本中记录了三块体，这意味着VF生物带的底部位于亚洲，而不是布里甘梯的底部。VF生物区的基地无法在珍妮伍德得到证实。对在英国首次出现的T. vetustus年龄的独立古生物学控制的回顾表明，在地方层面上缺乏地层精度。补充材料:完整的生物地层范围图和生物地层数据电子表格可在https://doi.org/10.6084/m9.figshare.c.4199306上获得

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Miospores from the Brigantian stratotype section at Janny Wood, Cumbria

Miospores from the clastic intervals between the Robinson Limestone and the Peghorn Limestone in the Brigantian (Mississippian) stratotype section at Janny Wood, Cumbria, are assigned to the Tripartites vetustus–Rotaspora fracta (VF) Assemblage Biozone. The species Murospora parthenopia , normally considered to be restricted to the underlying Raistrickia nigra–Triquitrites marginatus (NM) Biozone, is also recorded. Tripartites vetustus is recorded from the stratigraphically deepest sample, meaning that the base of the VF Biozone lies within the Asbian and not at the base of the Brigantian. The base of the VF Biozone cannot be proven in Janny Wood. A review of independent palaeontological controls on the age of the first appearance of T. vetustus in Britain indicates a lack of stratigraphical precision at the local level. Supplementary material: A full biostratigraphical range chart and a spreadsheet of biostratigraphical data are available at https://doi.org/10.6084/m9.figshare.c.4199306

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来源期刊

Proceedings of the Yorkshire Geological Society 地学-地质学

CiteScore

2.00

自引率

30.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Proceedings of the Yorkshire Geological Society (PYGS) has been published without a break since 1839. It is one of the leading journals of British geology. Each year two parts are issued containing original research papers on all aspects of geology. Traditionally the Proceedings has given particular attention to the geology of northern England and its neighbouring areas. The submission of papers on related topics but of a more general interest is encouraged. All papers are subjected to the full scrutiny of two independent referees.