气候变化领域集成服务门户(CCPortal): The earliest known Spongeliomorpha from the Lower Devonian of the northwestern Yangtze Platform; South China

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DOI	10.1016/j.palaeo.2020.109772
	The earliest known Spongeliomorpha from the Lower Devonian of the northwestern Yangtze Platform; South China
	Zhang X.; Liu J.; Wang Y.; Xu H.
发表日期	2020
ISSN	0031-0182
卷号	551
英文摘要	Crustacean trace fossils provide invaluable information to paleobilogical, environmental and ecological interpretations in the Earth history. Here we report an unusually large (segments up to 58 mm across), three-dimensional burrow system from the Lower Devonian Pingyipu Formation, which was deposited in a nearshore setting on the northwestern Yangtze Platform, South China. The burrow system is dominated by horizontally-developed networks probably with vertical shafts connecting to the sediment-water interface. The burrow surfaces show no signs of lining but are characterized by scratches including ridges and bundles of ear-shaped striae, implying an assignation to Spongeliomorpha aff. S. chevronensis (Muñiz and Mayoral 2001). The overall morphological and taphonomic features suggest permanent, open burrows, produced in a substrate with considerable firmness. Further investigation indicates that the burrow system may have been constructed by a colony of large, unknown crustacean with thoracic appendages decorated with acute seta or denticulations. They generally served a combined purpose of dwelling and perhaps feeding on microbial growth accumulating on the tunnel margins. These burrows represent the earliest known three-dimensional burrow systems constructed by a crustacean that may be comparable to their modern analogues in both morphological and functional aspects. The unusually large size of the burrows may have been favored by a higher atmospheric oxygen level during the Early Devonian. © 2020 Elsevier B.V.
英文关键词	Agrichnion; Crustacean burrow; Morphological reconstruction; Oxygen level; Trace fossil
语种	英语
scopus关键词	crustacean; Devonian; growth; nearshore environment; sediment-water interface; taphonomy; trace fossil; China; Yangtze Platform; Crustacea
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150480
作者单位	State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China; Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing, 210008, China; Paleontology and Stratigraphy School of Earth and Space Sciences, Peking University, Beijing, 100871, China
推荐引用方式 GB/T 7714	Zhang X.,Liu J.,Wang Y.,et al. The earliest known Spongeliomorpha from the Lower Devonian of the northwestern Yangtze Platform; South China[J],2020,551.
APA	Zhang X.,Liu J.,Wang Y.,&Xu H..(2020).The earliest known Spongeliomorpha from the Lower Devonian of the northwestern Yangtze Platform; South China.Palaeogeography, Palaeoclimatology, Palaeoecology,551.
MLA	Zhang X.,et al."The earliest known Spongeliomorpha from the Lower Devonian of the northwestern Yangtze Platform; South China".Palaeogeography, Palaeoclimatology, Palaeoecology 551(2020).