A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate
The Jurassic System in the Sichuan Basin of eastern Asia is represented by the extensive development of massive thick red beds, mainly composed of purplish-red sandstones and mudstones. Abundant invertebrate and verte -brate fossils have been recovered from these Jurassic red beds. However, fossil w...
Published in: | Review of Palaeobotany and Palynology |
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Language: | English |
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Online Access: | http://ir.nigpas.ac.cn/handle/332004/42668 http://ir.nigpas.ac.cn/handle/332004/42669 https://doi.org/10.1016/j.revpalbo.2023.104945 |
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/42669 2023-11-12T04:00:26+01:00 A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate Xie, Aowei Wang, Yongdong Tian, Ning Uhl, Dieter 2023-10-01 http://ir.nigpas.ac.cn/handle/332004/42668 http://ir.nigpas.ac.cn/handle/332004/42669 https://doi.org/10.1016/j.revpalbo.2023.104945 英语 eng ELSEVIER REVIEW OF PALAEOBOTANY AND PALYNOLOGY http://ir.nigpas.ac.cn/handle/332004/42668 http://ir.nigpas.ac.cn/handle/332004/42669 doi:10.1016/j.revpalbo.2023.104945 Brachyoxylon qijiangense sp nov Upper Shaximiao Formation Leaf retention time Mean sensitivity Qijiang GROWTH-RINGS ALEXANDER ISLAND FOSSIL WOODS CLIMATE REAPPRAISAL SICHUAN FOREST BASIN BIODIVERSITY RECORDS Plant Sciences Paleontology 期刊论文 2023 ftchinacscnigpas https://doi.org/10.1016/j.revpalbo.2023.104945 2023-10-13T00:19:25Z The Jurassic System in the Sichuan Basin of eastern Asia is represented by the extensive development of massive thick red beds, mainly composed of purplish-red sandstones and mudstones. Abundant invertebrate and verte -brate fossils have been recovered from these Jurassic red beds. However, fossil woods are much less documented. Here, we describe fossil woods from the Middle Jurassic Shaximiao Formation at Qijiang of Chongqing City in southeastern Sichuan Basin, China, obtaining typical Brachyoxylon anatomy with mixed radial tracheid pitting and araucarioid cross-field pitting. Owing to a novel combination of radial tracheid pitting, cross-field pitting and ray height, a new species, Brachyoxylon qijiangense Xie, Wang et Tian sp. nov. is recognized here. Based on the tree mean sensitivity and leaf retention time analysis, along with the comparison with other invertebrate and leaf fossils in the Shaximiao Formation, the new fossil woods bearing true growth rings with abundant, well-formed earlywood and extremely narrow latewood indicates that B. qijiangense sp. nov. was an evergreen tree growing in a warm and humid climate with mild seasonality during the Middle Jurassic in Qijiang, probably in a flooding-disturbed, streamside condition. Report Alexander Island Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Verte ENVELOPE(141.192,141.192,-66.740,-66.740) Review of Palaeobotany and Palynology 317 104945 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Brachyoxylon qijiangense sp nov Upper Shaximiao Formation Leaf retention time Mean sensitivity Qijiang GROWTH-RINGS ALEXANDER ISLAND FOSSIL WOODS CLIMATE REAPPRAISAL SICHUAN FOREST BASIN BIODIVERSITY RECORDS Plant Sciences Paleontology |
spellingShingle |
Brachyoxylon qijiangense sp nov Upper Shaximiao Formation Leaf retention time Mean sensitivity Qijiang GROWTH-RINGS ALEXANDER ISLAND FOSSIL WOODS CLIMATE REAPPRAISAL SICHUAN FOREST BASIN BIODIVERSITY RECORDS Plant Sciences Paleontology Xie, Aowei Wang, Yongdong Tian, Ning Uhl, Dieter A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate |
topic_facet |
Brachyoxylon qijiangense sp nov Upper Shaximiao Formation Leaf retention time Mean sensitivity Qijiang GROWTH-RINGS ALEXANDER ISLAND FOSSIL WOODS CLIMATE REAPPRAISAL SICHUAN FOREST BASIN BIODIVERSITY RECORDS Plant Sciences Paleontology |
description |
The Jurassic System in the Sichuan Basin of eastern Asia is represented by the extensive development of massive thick red beds, mainly composed of purplish-red sandstones and mudstones. Abundant invertebrate and verte -brate fossils have been recovered from these Jurassic red beds. However, fossil woods are much less documented. Here, we describe fossil woods from the Middle Jurassic Shaximiao Formation at Qijiang of Chongqing City in southeastern Sichuan Basin, China, obtaining typical Brachyoxylon anatomy with mixed radial tracheid pitting and araucarioid cross-field pitting. Owing to a novel combination of radial tracheid pitting, cross-field pitting and ray height, a new species, Brachyoxylon qijiangense Xie, Wang et Tian sp. nov. is recognized here. Based on the tree mean sensitivity and leaf retention time analysis, along with the comparison with other invertebrate and leaf fossils in the Shaximiao Formation, the new fossil woods bearing true growth rings with abundant, well-formed earlywood and extremely narrow latewood indicates that B. qijiangense sp. nov. was an evergreen tree growing in a warm and humid climate with mild seasonality during the Middle Jurassic in Qijiang, probably in a flooding-disturbed, streamside condition. |
format |
Report |
author |
Xie, Aowei Wang, Yongdong Tian, Ning Uhl, Dieter |
author_facet |
Xie, Aowei Wang, Yongdong Tian, Ning Uhl, Dieter |
author_sort |
Xie, Aowei |
title |
A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate |
title_short |
A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate |
title_full |
A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate |
title_fullStr |
A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate |
title_full_unstemmed |
A new extinct conifer Brachyoxylon from the Middle Jurassic in southern China: Wood anatomy, leaf phenology and paleoclimate |
title_sort |
new extinct conifer brachyoxylon from the middle jurassic in southern china: wood anatomy, leaf phenology and paleoclimate |
publisher |
ELSEVIER |
publishDate |
2023 |
url |
http://ir.nigpas.ac.cn/handle/332004/42668 http://ir.nigpas.ac.cn/handle/332004/42669 https://doi.org/10.1016/j.revpalbo.2023.104945 |
long_lat |
ENVELOPE(-69.895,-69.895,-71.287,-71.287) ENVELOPE(141.192,141.192,-66.740,-66.740) |
geographic |
Alexander Island Verte |
geographic_facet |
Alexander Island Verte |
genre |
Alexander Island |
genre_facet |
Alexander Island |
op_relation |
REVIEW OF PALAEOBOTANY AND PALYNOLOGY http://ir.nigpas.ac.cn/handle/332004/42668 http://ir.nigpas.ac.cn/handle/332004/42669 doi:10.1016/j.revpalbo.2023.104945 |
op_doi |
https://doi.org/10.1016/j.revpalbo.2023.104945 |
container_title |
Review of Palaeobotany and Palynology |
container_volume |
317 |
container_start_page |
104945 |
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1782327861104869376 |