DOI: 10.1016/j.palaeo.2015.11.019
论文题名: Role and lifestyle of calcified cyanobacteria (Stanieria) in Permian-Triassic boundary microbialites
作者: Wu Y.-S. ; Yu G.-L. ; Jiang H.-X. ; Liu L.-J. ; Zhao R.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 448 起始页码: 39
结束页码: 47
语种: 英语
英文关键词: Cyanobacteria
; Hitch-hiking lifestyle
; Microbialites
; Paleoecology
; Permian-Triassic boundary
; Stanieria
英文摘要: Calcified coccoid fossils in the Permian-Triassic boundary microbialites were widely considered to represent the remains of the organisms that formed the microbialites. However, this role has been recently attributed to the fossil casts of Microcystis cyanobacterial colonies, leaving the ecological role of the coccoid fossils, as well as their affinities, uncertain. Here we propose that these coccoid fossils bear morphological similarity and are related to the extant epiphytic cyanobacterium Stanieria, and that they lived in surface waters by attaching themselves to bloom-forming phytoplankton, in a hitch-hiking lifestyle. Calcification of the envelopes of these interpreted Stanieria cells produced the small thin-walled spherical calcareous coccoid fossils. Different from ordinary pseudoplanktons, Stanieria cells cannot attach themselves to sparse planktons, but only to densely packed phytoplanktons in bloom. The dependence of these calcified Stanieria fossils on this lifestyle makes them possible indicators of ancient planktonic blooms. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68519
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Key Laboratory of Petroleum Resource Research, CAS, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
Recommended Citation:
Wu Y.-S.,Yu G.-L.,Jiang H.-X.,et al. Role and lifestyle of calcified cyanobacteria (Stanieria) in Permian-Triassic boundary microbialites[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,448