Plant resilience and extinctions through the Permian to Middle Triassic on the North China Block: A multilevel diversity analysis of macrofossil records
Plant resilience and extinctions through the Permian to Middle Triassic on the North China Block: A multilevel diversity analysis of macrofossil records
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华北地块二叠纪至中三叠世的植物恢复力和灭绝：大化石记录的多层次多样性分析
DOI：
10.1016/j.earscirev.2021.103846
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发表时间：
2021-10
影响因子：
12.1
通讯作者：
Jinzhuang Xue
中科院分区：
文献类型：
--
作者：
Conghui Xiong;Jiashu Wang;Pu Huang;Borja Cascales-Minana;Christopher J. Cleal;Michael J. Benton;Jinzhuang Xue
关于二叠纪末大规模灭绝（EPME）的一个关键问题是，为什么很难确定它对陆地植物的影响：一些分析显示多样性的损失非常明显，而另一些分析则显示变化不大。也许关键问题是分析多样性数据的规模。在这里，我们研究了植物多样性的变化，通过二叠纪到中三叠世在华北地块（NCB）的基础上更新的数据集和多样性测量在不同的地理时间尺度。我们定义了整个（古）大陆的区域尺度多样性，包括具有植物化石的不同沉积环境;同一沉积体系（如河流或三角洲体系）内局部区域的区域尺度多样性;以及在相对较短时间内（例如不到10，000年）形成的单个床的床尺度多样性。太原组、山西组、下石盒子组和上石盒子组的植物群及其横向对应物似乎是相对连续和稳定的，以湿地组合为主，在床、景观和区域尺度上具有可比的多样性，并且具有相对稳定的灭绝率、起源率和周转率。上石盒子组和孙家沟组（及横向等效物）之间的过渡是区域尺度属和物种多样性最大的灭绝，灭绝率高，起源率低，但平均床层尺度和景观尺度多样性变化较小。此后，煤沼泽消失，分布广泛的属绝灭或分布面积缩小，红层普遍存在，残存植物为瓦耳奇期的针叶树、盾形种子植物等高级裸子植物，表明气候总体趋于干燥。在孙家沟组和刘家沟组（及横向对应物）之间的过渡处发生了进一步的灭绝事件，在区域尺度上物种灭绝和起源率最高。几乎所有的二叠纪植物物种都灭绝了，并被新的分类群所取代，而床规模和床规模的变化不大。孙家沟/刘家沟转换事件与中国西南地区的海洋EPME和Gigantopteris-dominated群落的崩溃有关，可能代表了NCB中的陆地EPME。
A key question about the end-Permian mass extinction (EPME) is why it has been so difficult to determine its impact on land plants: some analyses show a very clear loss of diversity and yet others show little change. Perhaps the key issue is the scale at which the diversity data are analysed. Here we investigate plant diversity changes through the Permian to Middle Triassic in the North China Block (NCB) based on an updated dataset and diversity measured at different geographic-temporal scales. We define regional-scale diversity for the whole (palaeo)continent, including diverse depositional environments with plant fossils; landscape-scale diversity for a local area within the same depositional system, such as a fluvial or deltaic system; and bed-scale diversity for an individual bed formed in a relatively short time (e.g. less than 10,000 years). The floras from the Taiyuan, Shanxi, Lower Shihhotse, and Upper Shihhotse formations, and their lateral equivalents, seem to be relatively continuous and stable, dominated by wetland assemblages, with comparable diversities at bed, landscape and regional scales, and relatively stable extinction, origination, and turnover rates. The transition between the Upper Shihhotse and Sunjiagou formations (and lateral equivalents) saw the largest extinction of regional-scale generic and species diversity, with high extinction rates and low origination rates, but only slight changes in average bed-scale and landscape-scale diversities. After this, coal swamps disappeared, most widespread genera became extinct or shrank in distribution area, red beds became common, and surviving plants were walchian conifers, peltasperms and other advanced gymnosperms, indicating an overall drying trend in climate. A further extinction event happened at the transition between the Sunjiagou and Liujiagou formations (and lateral equivalents), with the highest species extinction and origination rates at regional scale. Almost all Permian plant species became extinct and were replaced by new taxa, while the bed-scale and landscape-scale diversities changed little. The Sunjiagou/Liujiagou transition event correlates with the marine EPME and the collapse ofGigantopteris-dominated communities in southwestern China, and probably represents the terrestrial equivalent of the EPME in the NCB.
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影响因子：
9.8
作者：
Dyer EE;Cassey P;Redding DW;Collen B;Franks V;Gaston KJ;Jones KE;Kark S;Orme CD;Blackburn TM
通讯作者：
Blackburn TM
华北鄂尔多斯盆地保德剖面宾夕法尼亚晚期至五家坪期孢粉地层
影响因子：
3
作者：
Liu Feng;Zhu Huaicheng;Ouyang Shu
通讯作者：
Ouyang Shu
高温驱动的质量灭绝：二叠纪三叠纪质量灭绝期间的杀死模型。
DOI：
10.1098/rsta.2017.0076
发表时间：
2018-10-13
期刊：
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
影响因子：
--
作者：
Benton MJ
通讯作者：
Benton MJ
DOI：
10.1130/mem185-p341
发表时间：
1995
期刊：
Geological Society of America Memoirs
影响因子：
--
作者：
R. Gastaldo;H. Pfefferkorn;W. DiMichele
通讯作者：
R. Gastaldo;H. Pfefferkorn;W. DiMichele
影响因子：
5.8
作者：
Zhixiong Shen;T. Törnqvist;B. Mauz;E. Chamberlain;A. Nijhuis;L. Sandoval
通讯作者：
Zhixiong Shen;T. Törnqvist;B. Mauz;E. Chamberlain;A. Nijhuis;L. Sandoval