DOI: 10.1016/j.palaeo.2015.11.049
论文题名: Evidence of a preservational gradient in the skeletal taphonomy of Ichthyopterygia (Reptilia) from Europe
作者: Beardmore S.R. ; Furrer H.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 443 起始页码: 131
结束页码: 144
语种: 英语
英文关键词: Ichthyopterygia
; Mesozoic
; Palaeoenvironment
; Taphonomic gradient
英文摘要: Studies of preservation have allowed environmental conditions at numerous localities in space and time to be inferred. However, in the search for sufficient vertebrate specimens to provide a large dataset, details of specimen taxonomy, geographic origin and stratigraphic level are often ignored or not collected. Any preservational variation identified as a result is therefore from a broad range rather than a specific group, locality or time. The effect of this limitation, mainly regarding the loss of crucial information on environmental processes in ancient settings and the biology of long extinct organisms, is demonstrated using specimens of Ichthyopterygia (Reptilia). Taphonomic analysis of a dataset of 173 specimens infers a consistent reduction of skeletal condition from peripheral to medial within a carcass and a taphonomic pathway involving minimal floating and prolonged residence on the sediment surface. The same dataset divided into three sub-datasets, from the Middle Triassic Besano Formation, Lower Jurassic Blue Lias Formation and Lower Jurassic Posidonia Shale Formation, highlight preservational variation, in the extent of loss of articulation and completeness that follows an environmental gradient related to proximity to major landmasses. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68605
Appears in Collections: 过去全球变化的重建
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作者单位: Elgin Museum, 1 High Street, Elgin, Moray, Scotland, United Kingdom; Paläontologisches Institut und Museum der Universität Zürich, Karl Schmid-Strasse 4, Zürich, Switzerland
Recommended Citation:
Beardmore S.R.,Furrer H.. Evidence of a preservational gradient in the skeletal taphonomy of Ichthyopterygia (Reptilia) from Europe[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,443