Protophyllocladoxylon jingyuanense sp. nov., a Gymnospermous Wood of the Serpukhovian (Late Mississippian) from Gansu, Northwest China
Protophyllocladoxylon jingyuanense sp. nov., a Gymnospermous Wood of the Serpukhovian (Late Mississippian) from Gansu, Northwest China
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靖远原叶石锤属 sp.
DOI：
10.1111/j.1755-6724.2010.00160.x
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发表时间：
2010-04
期刊：
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
本文报道了裸子植物化石木一新种--靖远原叶木（Protophyllocladoxylon jingyuanense sp. nov.）在中国西北部甘肃磁窑煤矿附近的青原组（Serpukhovian/晚密西西比世）下部描述了该化石。标本仅保存在硅化的次生木质部中，而生长轮缺失。径向管胞壁的纹孔为南洋杉状，单列，偶尔双列。木质部射线是均匀的，单列，偶尔双列。交叉场坑简单，大，数量一到两个。轴向薄壁组织不存在。本文记载了不同地质年代的原叶木木材的解剖特征和地理分布。具有轴向薄壁组织而无生长轮的物种生活在温暖的气候中，而无轴向薄壁组织而有生长轮的物种则生活在温暖或寒冷的气候中。原始白木的理想生存气候是温暖和潮湿。我们的新物种，作为早石炭世的化石木材，可能是已知最早的Protophyllocladoxylon物种。
A new species of gymnospermous fossil wood, Protophyllocladoxylon jingyuanense sp. nov., is described from the lower part of the Tsingyuan Formation (Serpukhovian/Late Mississippian), near the coal mine of Ciyao, Gansu, northwestern China. The specimen is preserved only in silicified secondary xylem, while growth rings are absent Pits in radial tracheidal walls are araucaroid in type, uniseriate, occasionally biseriate. Xylem rays are homogeneous, uniseriate, occasionally biseriate. Cross‐field pits are simple, large, one to two in number. Axial parenchyma is absent. The anatomical characters and geographic distribution of Protophyllocladoxylon woods through geological ages are documented. Those species with axial parenchyma and without growth rings live in warm climate, whereas the species without axial parenchyma and with growth rings are present either in warm or cool climate. The ideal living climate for Protophyllocladoxylon woods is warm and wet. Our new species, as a fossil wood of Early Carboniferous, is likely the earliest known species of Protophyllocladoxylon.
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DOI：
10.1111/j.1755-6724.2008.tb00319.x
发表时间：
2008-02
期刊：
Acta Geologica Sinica ‐ English Edition
影响因子：
--
作者：
J. Xiao-chi;Zhan Lipei
通讯作者：
J. Xiao-chi;Zhan Lipei
影响因子：
1.9
作者：
D. Pons
通讯作者：
D. Pons
影响因子：
0.8
作者：
W. N. Edwards
通讯作者：
W. N. Edwards
DOI：
10.1111/j.1755-6724.2006.tb00254.x
发表时间：
2006-06
期刊：
Acta Geologica Sinica ‐ English Edition
影响因子：
--
作者：
Shuwen Dong;Yadong Zheng;Xuanhua Chen;Shi Jing
通讯作者：
Shuwen Dong;Yadong Zheng;Xuanhua Chen;Shi Jing
影响因子：
1.9
作者：
Zhao-qi Yao;Lu-jun Liu;S. Zhang
通讯作者：
Zhao-qi Yao;Lu-jun Liu;S. Zhang