黔东北伊迪卡拉纪陡山沱组的宏体藻类

王约; 王训练; 黄禹铭

Volume 32 Issue 6

Jun. 2007

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WANG Yue, WANG Xun-lian, HUANG Yu-ming, 2007. Macroscopic Algae from the Ediacaran Doushantuo Formation in Northeast Guizhou, South China. Earth Science, 32(6): 828-844.

Citation:

WANG Yue, WANG Xun-lian, HUANG Yu-ming, 2007. Macroscopic Algae from the Ediacaran Doushantuo Formation in Northeast Guizhou, South China. Earth Science, 32(6): 828-844.

WANG Yue, WANG Xun-lian, HUANG Yu-ming, 2007. Macroscopic Algae from the Ediacaran Doushantuo Formation in Northeast Guizhou, South China. Earth Science, 32(6): 828-844.

Citation:

WANG Yue, WANG Xun-lian, HUANG Yu-ming, 2007. Macroscopic Algae from the Ediacaran Doushantuo Formation in Northeast Guizhou, South China. Earth Science, 32(6): 828-844.

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Macroscopic Algae from the Ediacaran Doushantuo Formation in Northeast Guizhou, South China

1.
School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
2.
School of Resources and Environments, Guizhou University, Guiyang 550003, China

Received Date: 2007-09-03
Publish Date: 2007-11-25

Abstract

Abstract

Macroscopic algae widely lived in the Doushantuo-period sea of the Ediacaran in the Yangtze region, South China. They have successfully laid down an essential basis in a new environment and an ecosystem chain for the evolution and the development of the metazoan. The Wenghui biota, which is found in the Ediacaran Doushantuo Formation in Northeast Guizhou, is composed mainly of macroalgae (18 species of 15 genera, one unnamed macroalgae, and macroalgal holdfast forms described herein), and contains macroscopic metazoan, putative metazoan and trace fossils. This biota not only contains some elements of the Miaohe biota from West Hubei, the Lantian flora from South Anhui, the Ediacara fauna in Australia, and the White Sea biota in Russia, but also has its own characters to distinguish other Ediacaran biota. The diverse macroalgae of the Wenghui biota clearly show organic and functional differentiations with some exhibiting a relationship with higher plants. The Wenghui biota lived in the euphotic zone of shallow sea with lower-energy and poor oxygen. Numerous macroalgae settled on the deposits by their holdfasts, and their semi-floating bodies erected on sea floors. They advanced the photosynthetic efficiency and increased oxygen in water. In addition, the macroalgae served as a primary producer in the paleoecosystem to provide an alternative food for the metazoan. Therefore, the appearance of macroscopic algae not only improved the environment and played an essential support for the growth and propagation of the metazoan which depended on oxygen, but also provided a new food source that served as a new basis in the ecosystem for metazoan's evolution and devel-opment. Moreover, prosperous macrobiota not only increased the productivity of organic matter but also favored the sedi- memation and the preservation of organic carbon.
- Wenghui biota,
- macroscopic algae,
- Doushantuo Formation,
- Ediacaran,
- Jiangkou,
- Northeast Guizhou,
- South Chinat

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Macroscopic Algae from the Ediacaran Doushantuo Formation in Northeast Guizhou, South China

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