First pod record of Mucuna (Papilionoideae, Fabaceae) from the late Miocene of the Yen Bai Basin, northern Vietnam

Author(s):  
Hung Ba Nguyen ◽  
Jian Huang ◽  
Truong Van Do ◽  
Lin-Bo Jia ◽  
Hoa Mai Thi Nguyen ◽  
...  

PhytoKeys ◽  
2020 ◽  
Vol 138 ◽  
pp. 3-15 ◽  
Author(s):  
Aye Thida Aung ◽  
Jian Huang ◽  
Truong Van Do ◽  
Ai Song ◽  
Jia Liu ◽  
...  

Three fossil species of Equisetum (Equisetaceae) were reported from the Neogene of south-western China and northern Vietnam, based on well-preserved rhizomes with tubers. Equisetum cf. pratense Ehrhart from the middle Miocene of Zhenyuan County, Yunnan Province, China is characterised by a bunch of three ovate tubers with longitudinal ridges on the surface. Equisetum yenbaiense A.T. Aung, T. Su, T.V. Do & Z.K. Zhou, sp. nov. from the late Miocene of Yenbai Province, Vietnam is characterised by four bunches of elongate tubers arranged in a whorl on a node. Equisetum yongpingense A.T. Aung, T. Su & Z.K. Zhou, sp. nov. from the late Pliocene of Yunnan is characterised by fibrous roots on most nodes and two to four bunches of large cylindrical tubers arranged in a whorl on a node. Floristic assemblages suggest that these species might have grown near a riverside or lakeshore. These new fossil records improve our understanding of species richness of Equisetum and their distribution range during the Neogene in Asia.



Author(s):  
Eleonora P. Radionova

The associations and ecological conditions of the existence of modern diatoms of the North-West (Pridneprovsky), Prikerchensky and Eastern regions of the subtidal zone of the Black Sea are considered. Based on the unity of the composition of the Present and Sarmatian-Meotian diatom flora, an attempt has been made to model some of the ecological c situation of the Late Miocene Euxinian basin.



Geo&Bio ◽  
2018 ◽  
Vol 2018 (16) ◽  
pp. 15-19
Author(s):  
Yu.O. Semenov ◽  
Keyword(s):  




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