DOI: 10.1016/j.palaeo.2014.03.026
论文题名: Testing the fossil record: Sampling proxies and scaling in the British Triassic-Jurassic
作者: Dunhill A.M. ; Benton M.J. ; Twitchett R.J. ; Newell A.J.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2014
卷: 404 起始页码: 1
结束页码: 11
语种: 英语
英文关键词: Fossil record
; Jurassic
; Palaeodiversity
; Proxy
; Sampling
; Triassic
英文摘要: The quality of the fossil record varies immensely across taxa, geographic regions, environments and time intervals. Because much of this variation can be confounded when examining global patterns, we present a detailed investigation of the British Triassic and Jurassic, one of the most intensively studied pairs of systems in the world. Marine Jurassic palaeodiversity is at least partly controlled by rock availability and accessibility. The terrestrial record is patchier, and effects of rock availability are overprinted by a stronger signal of sporadic preservation. These results also fit a sea-level driven common-cause explanation, as one would expect to see close correlation between rock availability and palaeodiversity in the marine realm, but less so in the terrestrial. Formation counts and palaeodiversity do not correlate, a surprising result given the number of earlier studies that have found close correlations. However, this study differs from most others in that formation counts and palaeodiversity metrics are derived from independent data sources, and so within-study redundancy is avoided. The study confirms the complexity of rock-fossil time series, and the likelihood that the fossil record documents a complex mix of potential biological signal, common cause signal, and rock record and sampling bias. It may be impossible to identify a useful simple sampling proxy for the fossil record that captures every bias and sampling error. Ironically, when preservation is good, sampling proxies representing rock availability, such as outcrop area, can be used to predict palaeodiversity, but are ineffectual when the fossil record is patchy. © 2014 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69338
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath BS2 7AY, United Kingdom; School of Earth Sciences, University of Bristol, Wills Memorial Building, Queen's Road, Bristol BS8 1RJ, United Kingdom; School of Geography, Earth and Environmental Sciences, Plymouth University, Drake Circus, Plymouth PL4 8AA, United Kingdom; British Geological Survey, Maclean Building, Crowmarsh Gifford, Wallingford OX10 8BB, United Kingdom
Recommended Citation:
Dunhill A.M.,Benton M.J.,Twitchett R.J.,et al. Testing the fossil record: Sampling proxies and scaling in the British Triassic-Jurassic[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014-01-01,404