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| 1 | Palaeoecological and palaeoenvironmental significance of someimportant spores and micro-algae in Quaternary deposits显示文摘Spores of ferns and allied plants, and micro-algae frequently occur in abundance in Quaternary deposits, but their palaeoenvironmental significance is seldom evaluated. This paper presents morphological descriptions of spores of Selaginella sinensis (Desv.) Spring, 1843 (Selaginellaceae) and Ceratopteris cf. thalictroides (L.) Brongniart, 1821 (Parkeriaceae) and the algae Pediastrum boryanum (Turpin) Meneghini, 1840, P. simplex Meyen, 1829, P. integrum N geli, 1849 (all Hydrodictyaceae), Spiniferites Mantell, 1850, emend. Sarjeant, 1970 (Spiniferitaceae) and Concentricystes Rossignal, 1962, emend. Jiabo, 1978 (systematic position unclear), and discusses their occurrence in mostly Quaternary sedimentary successions. All are closely associated with aquatic habitats. Extant Selaginella sinensis often colonizes fairly wet hillsides and gaps between rocks, and shady sides of ravines and slopes; it is also found within thickets of trees and shrubs (boscages) and in forests with calcareous soils. Ceratopteris thalictroides, Pediastrum and Concentricystes inhabit freshwater lakes and both natural and artificial wetlands, such as paddy fields and ditches. Spiniferites is a salt-water genus and usually associated with the marine realm. Fossil and subfossil representatives of all of these taxa can be useful proxies of biodiversity and, therefore, also important for determining environmental conditions during the Quaternary period. | TANG LingYu MAO LiMi Lü XinMiao MA QingFeng ZHOU ZhongZe YANG ChunLei KONG ZhaoChen BATTEN David J | 2013 | Chinese Science Bulletin2013,58,25: | 9 |
| 2 | Key to mangrove pollen and spores of southern China:an aid to palyno- logical interpretation of Quaternary deposits in the South China Sea显示文摘 | Mao Limi Batten D J Fujiki T | 2012 | Review of Palaeobotany and Pal- ynology2012,17,: | 1 |
| 3 | Phytolith evidence for human-plant subsistence in Yahuai Cave(Guangxi, South China) over the past 30000 years显示文摘South China preserves a rich archaeological record elucidating the evolution of early modern humans during the Late Pleistocene.However,few studies on plant utilization were conducted in this region.We used phytolith analysis from Yahuai Cave,Guangxi,to infer human use of plant resources over the past 30000 years.AMS 14C dating was used to constrain the chronological framework.Results indicate that several economically essential species were present throughout the sequence including Urticineae(cf.Ulmus sp.),which appears in the lower layers of the sequence(Marine Isotope Stage 3 through Heinrich 1);bamboo and palm which appear throughout the sequence,and wild rice which appears in a clear archaeological context dating to 16000 years ago.This is the earliest record of wild rice in South China and a prerequisite for rice domestication.The unique stone tool assemblages,which resemble those in north China as opposed to South China,point to the possibility that humans,seeking refuge from the colder north,brought their tool kit with them and utilized familiar northern taxa.Warmer South China would have served as a refuge for human populations escaping the cold,harsh climate in the north with more ameliorate conditions in the south. | Yan WU Guangmao XIE Limi MAO Zhijun ZHAO Miriam BELMAKER | 2020 | Science China Earth Sciences2020,63,11: | 1 |
| 4 | A Whole Plant Herbaceous Angiosperm from the Middle Jurassic of China显示文摘In contrast to woody habit with secondary growth,truthful herbaceous habit lacking secondary growth is restricted to angiosperms among seed plants.Although angiosperms might have occurred as early as in the Triassic and herbaceous habit theoretically may have been well adopted by pioneer angiosperms,pre-Cretaceous herbs are missing hitherto,leaving the origin of herbs and evolution of herbaceous angiosperms mysterious.Here we report Juraherba bodae gen.et sp.nov,a whole plant herbaceous angiosperm,from the Middle Jurassic(>164 Ma)at Daohugou Village,Inner Mongolia,China,a fossil Lagerstatten that is worldwide famous for various fossil finds.The angiospermous affinity of Juraherba is ensured by its enclosed ovules/seeds.The plant is small but complete,with physically connected hairy root,stem,leaves,and fructifications.The Middle Jurassic age recommends Juraherba as the earliest record of herbaceous seed plants,demanding a refresh look at the evolutionary history of angiosperms. | HAN Gang LIU Zhongjian LIU Xueling MAO Limi Frederic M.B. JACQUES WANG Xin | 2016 | Acta Geologica Sinica(English Edition)2016,90,1: | 1 |