A New Clue for the Late Eocene Freshwater Ecosystem of Central China Evidenced by New Fossils of Trapa L. and Hemitrapa Miki (Lythraceae)
文献类型：期刊论文
| 作者 | Han, Zhuochen4,5; Jia, Hui3,4,5; Meng, Xiangning4,5; Ferguson, David K.2; Luo, Mingyue4,5; Liu, Ping4,5; Wang, Junjie4,5; Quan, Cheng1 |
| 刊名 | BIOLOGY-BASEL
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 11期号:10页码:12 |
| 关键词 | Trapa Hemitrapa paleoenvironment late Eocene central China |
| DOI | 10.3390/biology11101442 |
| 通讯作者 | Jia, Hui(jiahui@xsyu.edu.cn) ; Quan, Cheng(quan@chd.edu.cn) |
| 英文摘要 | Simple Summary This paper describes the aquatic plants of Trapa L. and Hemitrapa Miki from the upper Eocene of Bailuyuan Formation in the Weihe Basin, central China. The discoveries represent the earliest known Trapa records in the world and the earliest Hemitrapa record in Asia. Furthermore, the new species identified in this study is the most reliable leaf fossil record of Trapa so far. These occurrences provide a new clue to investigate the origin of Trapa and its evolutionary relationships with Hemitrapa. The unexpected aquatic plant assemblage indicates that central China was warm and humid, with freshwater ponds or lakes, in the late Eocene. Both Trapa L. and the extinct Hemitrapa Miki are aquatic plants in the family Lythraceae, with abundant fossil records in Eurasia and North America in the Cenozoic. However, documented materials are mainly based on fruit and pollen grains without reliable leaf fossils. Here, we report fossil leaves, fruit, and roots of Trapa and fruit of Hemitrapa from the late Eocene of Weinan, the Weihe Basin of central China. The fossil leaves are identified as a new species, Trapa natanifolia Z. C. Han et H. Jia sp. nov., which represents the earliest known record of a Trapa leaf fossil. It is remarkably similar to extant species of Trapa, mostly due to the unique inflated petiole structures found in both of them. While displaying prominent intergeneric differences, the incomplete fossil fruits are assigned to Trapa sp. indet. and Hemitrapa sp. indet. The former is the earliest fossil fruit record of Trapa, and the latter represents the earliest fossil record of Hemitrapa found in Asia. These new fossil discoveries suggest that the divergence of Trapa and Hemitrapa occurred at least by the late Eocene. It is believed that modern Trapa most likely originated in China. Furthermore, this unexpected aquatic plant fossil assemblage indicates that central China was warm and humid, with freshwater ponds or lakes, in the late Eocene and not as arid as previously thought. |
| WOS关键词 | LATE MIOCENE ; POLLEN ; OLIGOCENE ; PLIOCENE ; RECORDS ; FRUITS |
| 资助项目 | National Natural Science Foundation of China[41820104002] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[42172036] ; National Natural Science Foundation of China[41802019] ; National Natural Science Foundation of China[41911530258] ; Foundation of the State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS[203109] ; Xi'an Shiyou University Youth Research & Innovation Group[2019QNKYCXTD05] |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000872216200001 |
| 资助机构 | National Natural Science Foundation of China ; Foundation of the State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, CAS ; Xi'an Shiyou University Youth Research & Innovation Group |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/41366]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Jia, Hui; Quan, Cheng |
| 作者单位 | 1.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China 2.Univ Vienna, Dept Paleontol, A-1010 Vienna, Austria 3.Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 4.Xian Shiyou Univ, Shaanxi Key Lab Petr Accumulat Geol, Xian 710065, Peoples R China 5.Xian Shiyou Univ, Sch Earth Sci & Engn, Xian 710065, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Zhuochen,Jia, Hui,Meng, Xiangning,et al. A New Clue for the Late Eocene Freshwater Ecosystem of Central China Evidenced by New Fossils of Trapa L. and Hemitrapa Miki (Lythraceae)[J]. BIOLOGY-BASEL,2022,11(10):12. |
| APA | Han, Zhuochen.,Jia, Hui.,Meng, Xiangning.,Ferguson, David K..,Luo, Mingyue.,...&Quan, Cheng.(2022).A New Clue for the Late Eocene Freshwater Ecosystem of Central China Evidenced by New Fossils of Trapa L. and Hemitrapa Miki (Lythraceae).BIOLOGY-BASEL,11(10),12. |
| MLA | Han, Zhuochen,et al."A New Clue for the Late Eocene Freshwater Ecosystem of Central China Evidenced by New Fossils of Trapa L. and Hemitrapa Miki (Lythraceae)".BIOLOGY-BASEL 11.10(2022):12. |
入库方式： OAI收割
来源：南京地质古生物研究所
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