CYCAD WOOD FROM THE LOPINGIAN (LATE PERMIAN) OF SOUTHERN CHINA: SHUICHENGOXYLON TIANII GEN. ET SP. NOV.
Anatomically preserved wood collected from coal seam no. 1 of the Naluozhai coal mine in the Lopingian (Late Permian) Wangjiazhai Formation in western Guizhou Province, China, is documented and interpreted. The wood belonged to a trunk with an inferred diameter of 25 cm or more and consists of axial...
Published in: | International Journal of Plant Sciences |
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UNIV CHICAGO PRESS
2011
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Online Access: | http://ir.nigpas.ac.cn/handle/332004/19917 https://doi.org/10.1086/659454 |
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/19917 2023-05-15T14:04:23+02:00 CYCAD WOOD FROM THE LOPINGIAN (LATE PERMIAN) OF SOUTHERN CHINA: SHUICHENGOXYLON TIANII GEN. ET SP. NOV. Wang, Shi-Jun He, Xiao-Yuan Shao, Long-Yi 2011-06-01 http://ir.nigpas.ac.cn/handle/332004/19917 https://doi.org/10.1086/659454 英语 eng UNIV CHICAGO PRESS INTERNATIONAL JOURNAL OF PLANT SCIENCES http://ir.nigpas.ac.cn/handle/332004/19917 doi:10.1086/659454 coal ball fossil wood new genus cycads GUIZHOU PROVINCE FOSSIL PLANTS GIGANTOPTERIDALES ANTARCTICYCAS AFFINITY TRUNK STEMS SPERMOPTERIS ARGENTINA ANATOMY Plant Sciences 期刊论文 2011 ftchinacscnigpas https://doi.org/10.1086/659454 2019-08-14T12:44:29Z Anatomically preserved wood collected from coal seam no. 1 of the Naluozhai coal mine in the Lopingian (Late Permian) Wangjiazhai Formation in western Guizhou Province, China, is documented and interpreted. The wood belonged to a trunk with an inferred diameter of 25 cm or more and consists of axial tracheids and horizontal rays. Tracheids vary greatly in size, and small ones are usually irregularly arranged. Tracheid walls are 5-10 mu m thick and usually bilayered. There are usually biseriate araucarioides-type bordered pits on the radial tracheid walls. Two to five oval bordered pits are in each cross-field. Ray cells are thin walled, although thick-walled cells exist in some rays. Rays are quite variable in width and height. Uni- and partly biseriate rays are usually 2-20 cells high, while bi- and partly tri- to tetraseriate ones are 5-79 cells high. The cell size of rays is also quite variable and is usually larger than that of tracheids in the tangential direction. There are numerous leaf traces in the wood, and each of them extends horizontally through the wood within a broader ray. The last character is unique in known Paleozoic woods and leads to the establishment of Shuichengoxylon tianii gen. et sp. nov. The affinity of the wood with cycads, its implication in the evolution of cycad xylotomy, and its growth environment are discussed. Report Antarc* Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Argentina International Journal of Plant Sciences 172 5 725 734 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
coal ball fossil wood new genus cycads GUIZHOU PROVINCE FOSSIL PLANTS GIGANTOPTERIDALES ANTARCTICYCAS AFFINITY TRUNK STEMS SPERMOPTERIS ARGENTINA ANATOMY Plant Sciences |
spellingShingle |
coal ball fossil wood new genus cycads GUIZHOU PROVINCE FOSSIL PLANTS GIGANTOPTERIDALES ANTARCTICYCAS AFFINITY TRUNK STEMS SPERMOPTERIS ARGENTINA ANATOMY Plant Sciences Wang, Shi-Jun He, Xiao-Yuan Shao, Long-Yi CYCAD WOOD FROM THE LOPINGIAN (LATE PERMIAN) OF SOUTHERN CHINA: SHUICHENGOXYLON TIANII GEN. ET SP. NOV. |
topic_facet |
coal ball fossil wood new genus cycads GUIZHOU PROVINCE FOSSIL PLANTS GIGANTOPTERIDALES ANTARCTICYCAS AFFINITY TRUNK STEMS SPERMOPTERIS ARGENTINA ANATOMY Plant Sciences |
description |
Anatomically preserved wood collected from coal seam no. 1 of the Naluozhai coal mine in the Lopingian (Late Permian) Wangjiazhai Formation in western Guizhou Province, China, is documented and interpreted. The wood belonged to a trunk with an inferred diameter of 25 cm or more and consists of axial tracheids and horizontal rays. Tracheids vary greatly in size, and small ones are usually irregularly arranged. Tracheid walls are 5-10 mu m thick and usually bilayered. There are usually biseriate araucarioides-type bordered pits on the radial tracheid walls. Two to five oval bordered pits are in each cross-field. Ray cells are thin walled, although thick-walled cells exist in some rays. Rays are quite variable in width and height. Uni- and partly biseriate rays are usually 2-20 cells high, while bi- and partly tri- to tetraseriate ones are 5-79 cells high. The cell size of rays is also quite variable and is usually larger than that of tracheids in the tangential direction. There are numerous leaf traces in the wood, and each of them extends horizontally through the wood within a broader ray. The last character is unique in known Paleozoic woods and leads to the establishment of Shuichengoxylon tianii gen. et sp. nov. The affinity of the wood with cycads, its implication in the evolution of cycad xylotomy, and its growth environment are discussed. |
format |
Report |
author |
Wang, Shi-Jun He, Xiao-Yuan Shao, Long-Yi |
author_facet |
Wang, Shi-Jun He, Xiao-Yuan Shao, Long-Yi |
author_sort |
Wang, Shi-Jun |
title |
CYCAD WOOD FROM THE LOPINGIAN (LATE PERMIAN) OF SOUTHERN CHINA: SHUICHENGOXYLON TIANII GEN. ET SP. NOV. |
title_short |
CYCAD WOOD FROM THE LOPINGIAN (LATE PERMIAN) OF SOUTHERN CHINA: SHUICHENGOXYLON TIANII GEN. ET SP. NOV. |
title_full |
CYCAD WOOD FROM THE LOPINGIAN (LATE PERMIAN) OF SOUTHERN CHINA: SHUICHENGOXYLON TIANII GEN. ET SP. NOV. |
title_fullStr |
CYCAD WOOD FROM THE LOPINGIAN (LATE PERMIAN) OF SOUTHERN CHINA: SHUICHENGOXYLON TIANII GEN. ET SP. NOV. |
title_full_unstemmed |
CYCAD WOOD FROM THE LOPINGIAN (LATE PERMIAN) OF SOUTHERN CHINA: SHUICHENGOXYLON TIANII GEN. ET SP. NOV. |
title_sort |
cycad wood from the lopingian (late permian) of southern china: shuichengoxylon tianii gen. et sp. nov. |
publisher |
UNIV CHICAGO PRESS |
publishDate |
2011 |
url |
http://ir.nigpas.ac.cn/handle/332004/19917 https://doi.org/10.1086/659454 |
geographic |
Argentina |
geographic_facet |
Argentina |
genre |
Antarc* |
genre_facet |
Antarc* |
op_relation |
INTERNATIONAL JOURNAL OF PLANT SCIENCES http://ir.nigpas.ac.cn/handle/332004/19917 doi:10.1086/659454 |
op_doi |
https://doi.org/10.1086/659454 |
container_title |
International Journal of Plant Sciences |
container_volume |
172 |
container_issue |
5 |
container_start_page |
725 |
op_container_end_page |
734 |
_version_ |
1766275436424200192 |