DOI: 10.1016/j.palaeo.2014.10.014
论文题名: What was the nature and role of Normapolles angiosperms? A case study from the earliest Cenozoic of Eastern Europe
作者: Daly R.J. ; Jolley D.W.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 418 起始页码: 141
结束页码: 149
语种: 英语
英文关键词: Angiosperms
; Climate
; Danian
; Ecology
; Normapolles
; Palynology
英文摘要: The Normapolles were an extinct group of early angiosperms which dominated much of the northern hemisphere during the Cretaceous. Although a product of early angiosperm radiation, they persisted beyond the K-Pg boundary, representing a significant proportion of the earliest Palaeocene palynological assemblage recovered from the Boltysh meteorite crater in Ukraine. While it is likely that many forms represent an ancestral lineage to modern day Fagales, particularly the walnut family (Juglandaceae), clear trends in certain species indicate that separate ecological preferences relating to temperature existed amongst them. In the Boltysh record the most abundant taxa occur preferentially within the early Danian hyperthermal, indicating a warm environment. Allied to their co-association with pollen of modern affinity, this suggests that they were scrubby, sclerophyllous plants akin to those which thrive in winter-wet ecosystems today. During and subsequent to the recovery from the early Danian hyperthermal these species decline and are replaced by different types. The Boltysh record demonstrates that in the very earliest Cenozoic, the Normapolles were a considerably more resilient and complex group than they are often portrayed and potentially important palaeoecological indicators. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69057
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 Geology and Petroleum Geology, University of Aberdeen, Meston Building,King's College, Aberdeen, United Kingdom
Recommended Citation:
Daly R.J.,Jolley D.W.. What was the nature and role of Normapolles angiosperms? A case study from the earliest Cenozoic of Eastern Europe[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,418