New fossil evidence from the late Pliocene of Yunnan, South China, sheds light on the distribution and diversification of Sambucus L. (Adoxaceae) in the northern low latitudes

Author(s):  
Yong-Jiang Huang ◽  
Hai Zhu ◽  
Jin-Jin Hu ◽  
Lin-Bo Jia ◽  
Zhe-Kun Zhou
2006 ◽  
Vol 252 (1-2) ◽  
pp. 72-81 ◽  
Author(s):  
Jun Tian ◽  
Dorothy K. Pak ◽  
Pinxian Wang ◽  
David Lea ◽  
Xinrong Cheng ◽  
...  

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Jian-Po Wang ◽  
Qi-Jian Li ◽  
Stephen Kershaw ◽  
Yuan-Yuan Zhang ◽  
Shen-Yang Yu ◽  
...  

AbstractThis study provides an overview and discussion of controls on the distribution of organic reefs during the Early Ordovican Period, in the Yangtze Platform, a region of epicontinental sedimentary rocks in South China. The Yangtze Platform was located in low latitudes during the Early Ordovician and recorded rich and diverse reefs through that time. During the late Tremadocian Epoch, dolomitic and stratiform stromatolites were common in supratidal to intertidal zones of the western Yangtze Platform, while columnar stromatolites formed in deeper waters of the eastern Yangtze Platform. Skeletal-dominated reefs occurred in upper subtidal settings of the central Yangtze Platform. A transition from microbial-dominated to metazoan-dominated reefs with shallowing-upward cycles was evident, indicating that the composition of the main reef-builders was driven mainly by water depth. Increasing metazoan competition during the Great Ordovician Biodiversification Event reduced the abundance of microbial reefs. Sufficient nutrient supply is interpreted to have promoted development of skeletal-dominated reefs locally in shallow settings in the central Yangtze Platform, especially represented by the expansion of abundant solitary fossils of lithistid sponges and Calathium. High salinity environmental settings facilitated the bloom of stromatolites in near-shore locations. Low oxygen content in deep subtidal settings may have led to the absence of skeletal reefs in these habitats, so the mass occurrences of stromatolites was located in the shallower-water central and eastern platform. No keratose sponge-bearing stromatolite can be confirmed across the platform during this interval.


IAWA Journal ◽  
2010 ◽  
Vol 31 (1) ◽  
pp. 89-94 ◽  
Author(s):  
Xin-Xin Feng ◽  
Tie-Mei Yi ◽  
Jian-Hua Jin

A new species, Paraphyllanthoxylon hainanensis, is described from the Eocene Changchang Formation of the Changchang Basin on Hainan Island, South China. It is the first record of this genus in China, providing important fossil evidence for research on the phytogeographic history of this genus. The form genus Paraphyllanthoxylon was previously only known from the Cretaceous and Neogene of North America, Mexico, France, Belgium, Japan, India and South Africa.


IAWA Journal ◽  
2021 ◽  
pp. 1-7
Author(s):  
Yifan Li ◽  
Luliang Huang ◽  
Cheng Quan ◽  
Jianhua Jin ◽  
Alexei A. Oskolski

Abstract A new species, Syzygium guipingensis sp. nov. (Myrtaceae), is described based on mummified fossil wood from the Miocene Erzitang Formation of Guiping Basin, Guangxi, South China. This species represents the most ancient reliable fossil record of the genus Syzygium in eastern Asia, showing the greatest similarity to the extant species S. buxifolium Hook. et Arnott. Its occurrence in the Miocene is consistent with the diversification age of the Asian lineage within Syzygium as estimated by molecular dating (11.4 Ma). The fossil record of Syzygium suggests that this genus migrated from Australia to eastern Asia in the Miocene, coincidently with the formation of island chains between these continents.


2018 ◽  
Vol 33 (1) ◽  
pp. 267-282 ◽  
Author(s):  
Hui Li ◽  
Panmao Zhai ◽  
Yang Chen ◽  
Er Lu

Abstract In this study, cases of the East Asia–Pacific (EAP) teleconnection pattern not responsible for persistent precipitation processes in the Yangtze River valley (YRV) have been investigated. The results suggest that such a type of EAP pattern has some linkage with persistent precipitation processes in south China (SC) with the following properties: 1) in response to the negative SSTAs and anticyclone near the Philippines, the meridional energy propagates from the low latitudes over the north of the Philippines; 2) the western Pacific subtropical high (WPSH) then intensifies and extends westward; 3) a meridional triple structure of the EAP teleconnection pattern is established; 4) at the same time, the cyclonic circulation over northeastern China introduces cold and dry air to the lower latitudes, merging with the water vapor into SC and leading to heavy precipitation from the fringe of the WPSH, the South China Sea, and the Bay of Bengal and the combination of systems persists for at least 3 days, leading to the persistent precipitation processes in SC; and 5) compared with the EAP teleconnection responsible for the precipitation in YRV, the positions of the three centers in the mid- and low latitudes are more southerly located than the YRV EAP centers. Further study indicates that the ocean surface heat conditions in the areas near the Philippines seem to be important in affecting the EAP teleconnection pattern for persistent precipitation processes in SC. Finally, all of the cases with persistent precipitation in SC during 1961–2010 linked with the EAP pattern have been investigated; the results are consistent with the above conclusions.


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