An exceptionally well-preserved herbaceous eudicot from the Early Cretaceous(late Aptian–early Albian)of Northwest China
An exceptionally well-preserved herbaceous eudicot from the Early Cretaceous（late Aptian–early Albian）of Northwest China作者机构：Key Laboratory of Mineral Resources in Western China (Gansu Province)Lanzhou University Northwest Institute of Eco-Environment and ResourcesChinese Academy of Sciences Key Laboratory of Petroleum and ResourcesGansu Province
出 版 物：《National Science Review》 (国家科学评论(英文版))
年 卷 期：2021年第8卷第12期
页 面：46-54页
核心收录：
学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学]
基 金：supported by the National Natural Science Foundation of China (42072014, 41872010, 41972010 and41602023) the National Second Tibetan Plateau Scientific Expedition and Research Grant (2019QZKK0704) the Fundamental Research Funds for the Central Universities (Lzujbky-2019-45)
主 题：eudicot Early Cretaceous Northwest China Jehol Biota, Gansufructus paleoecology
摘 要：A fossil eudicot, Gansufructus saligna gen. et sp. nov., is reported from the Early Cretaceous(late Aptian–early Albian) of the Gansu Province, Northwest China, based on numerous well-preserved axes with attached leaves and infructescences. The leaves are alternate, short petiolate and linear-lanceolate with low rank pinnate to reticulate venation. The infructescences are loose panicles bearing fruits in different stages of maturity, each containing four partly free carpels borne in a whorled arrangement. Each carpel has three to five seeds borne along its ventral margin. The nature of the leaves and axes indicates a terrestrial,herbaceous habit. In general organization, Gansufructus is closely similar to the fruit-bearing axes of Sinocarpus decussatus from the Early Cretaceous Jehol Biota, as well as other more or less contemporaneous angiosperms from the Far East, which together provide evidence of diverse eudicot angiosperms of low stature colonizing areas close to environments of deposition.
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