Fruits of Scirpus (Cyperaceae) from the early Miocene of Weichang, Hebei Province, North China and their palaeoecological and palaeobiogeographical implications
1 School of Chemistry, Biology, Environment, Yuxi Normal University, Yuxi 653100, Yunnan Province, China.; 2 Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, Jiangsu Province, China.; 3 Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 818 South Beijing Road, Urumqi 830011, Xinjiang Uygur Autonomous Region, China.; 4 Qian-Dao-Hu Museum of Natural History, Hangzhou 311700, Zhejiang Province, China.; 5 State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
Abstract This paper describes the fossil fruits of Scirpus weichangensis X.Q. Liang, sp. nov. from the early Miocene of Guangyongfa Village, Weichang County, Hebei Province, North China. The fossil fruits are obovate in shape and their lateral sections are plumply trigonous. The cell walls of the surface are straight. The persistent stout bristles have downward-directed barbellae in distal 1/2. The occurrence of the fossil Scirpus indicates that Guangfayong was a wetland in the early Miocene. Based on the fossil data, the genus likely originated in Western Siberia in the Oligocene, spread during the Miocene, and was finally distributed worldwide in the Holocene.
. Fruits of Scirpus (Cyperaceae) from the early Miocene of Weichang, Hebei Province, North China and their palaeoecological and palaeobiogeographical implications[J]. , 2019, 8(2): 142-149.
. Fruits of Scirpus (Cyperaceae) from the early Miocene of Weichang, Hebei Province, North China and their palaeoecological and palaeobiogeographical implications[J]. Journal of Palaeogeography, 2019, 8(2): 142-149.
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