DOI: 10.1016/j.palaeo.2016.03.021
论文题名: First clear evidence that Archaeozostera is not an ancestor of Zosteracean sea-grass but a trace fossil
作者: Kotake N. ; Kikuchi K. ; Ishiwata K. ; Tsujino Y. ; Nakao K.-I. ; Furukawa N.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 454 起始页码: 12
结束页码: 19
语种: 英语
英文关键词: Archaeozostera
; Cretaceous
; Detritus feeder
; Japan
; Ontogeny
; Trace fossil
; Zosteracean sea-grass
英文摘要: Many structures that were once interpreted as fossils of plants, sea-grasses, or seaweeds are now treated as ichnofossils produced by ancient marine benthic animals. However, the origin of Archaeozostera has still debated owing to a lack of clear and persuasive evidence. At last, we found special specimens that Archaeozostera is not a fossil of the Zosteracean sea-grass but a trace fossil produced by infaunal benthic animal from the late Cretaceous submarine fan deposits in Japan. Detailed field observations of occurrence, morphological analysis, and X-ray diffraction analysis revealed that previous discussions of Archaeozostera were based not only on incomplete specimens but also on biased outcrop observations. On the basis of morphological analysis of new specimens, we demonstrate the first complete overall morphology of Archaeozostera and clear evidence that Archaeozostera is a trace fossil produced by a sedentary endobenthic detritus feeder, which systematically excreted fecal matter deep in sediments. A representative specimen of Archaeozostera, which has recently found from Eocene deep-sea sediments in Spanish Pyrenees, strongly suggests that it is no longer an endemic trace fossil of the Upper Cretaceous of Japan. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68392
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 Earth Science, Graduate School of Chiba University, Chiba, Japan; Prefectural Museum of Tokushima, Tokushima, Japan; Yachimata Junior High School, Yachimata, Chiba, Japan
Recommended Citation:
Kotake N.,Kikuchi K.,Ishiwata K.,et al. First clear evidence that Archaeozostera is not an ancestor of Zosteracean sea-grass but a trace fossil[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,454