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作 者:王姿晰 史恭乐[1] 孙柏年 董重[1] 尹素心 吴谐婷 WANG Zi-xi;SHI Gong-le;SUN Bai-nian;DONG Chong;YIN Su-xin;WU Xie-ting(State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Nanjing 210008,China;School of Earth Sciences,Lanzhou University,Lanzhou 730000,China)
机构地区:[1]现代古生物学和地层学国家重点实验室,中国科学院南京地质古生物研究所,中国科学院生物演化与环境卓越创新中心,南京210008 [2]兰州大学地质科学与矿产资源学院,兰州730000
出 处:《古生物学报》2021年第3期429-438,共10页Acta Palaeontologica Sinica
基 金:中国科学院战略性先导专项(B类)(XDB26000000);中国科学院南京地质古生物研究所古生物与地层学国家重点实验室(No.20192109)联合资助;国家自然科学基金(41972010,41772014,41902010);江苏省自然科学基金(BK20191100)。
摘 要:丰富的化石记录显示中生代和新生代紫萁属在北半球广泛分布。本文描述了发现于福建中中新世佛昙群的紫萁属一新种:漳浦紫萁(Osmunda zhangpuensis Z. X. Wang and B. N. Sun, sp. nov.)。化石小羽片保存完好,呈线状披针形,边缘具齿,羽状脉序。在该属现生种中,当前化石种与现生种Osmundabanksiifolia在形态上最相似。当前化石的发现表明,早在中中新世紫萁属就已生长在福建省。漳浦紫萁和之前报道过的附生真菌化石以及龙脑香科、桑科、豆科、荨麻科、胡桐科、大戟科、樟科等植物的存在,表明福建在中中新世时期的气候温暖湿润。Abundant fossil records indicate that the genus Osmunda L. was widely distributed in the Northern Hemisphere during the Mesozoic and Cenozoic. Here, a new species of Osmunda, namely Osmunda zhangpuensis Z. X.Wang and B N. Sun, sp. nov., is described based on well-preserved sterile pinnules from the middle Miocene Fotan Group in Fujian, Southeast China. The pinnules of the new species are linear-lanceolate with serrate margins and pinnate venation. Of extant Osmunda species, O. zhangpuensis sp. nov. most closely resembles Osmunda banksiifolia. The discovery of the new species suggests that the Osmunda existed in this region during the middle Miocene. Moreover,the presence of O. zhangpuensis sp. nov., together with the epiphyllous fungi on many leaf megafossils of Dipterocarpaceae, Moraceae, Fabaceae, Urticaceae, Calophyllaceae, Euphorbiaceae, and Lauraceae, suggests that the paleoclimate during the middle Miocene in Fujian, China was warm and humid.
分 类 号:Q914.8[天文地球—古生物学与地层学]
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