DISCOVERY OF THE MIDDLE TRIASSIC CYCAD Nilssonia splendens IN BENXI CITY, LIAONING PROVINCE
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摘要:
尼尔桑属(Nilssonia Brongniart 1825)是苏铁植物门(Cycadophyta)代表分子之一, 地质历史时期在中国和世界均有着相当广泛的分布. 自1993年孙革报道华丽尼尔桑(Nilssonia splendens Sun 1993)以来, 该种仅见于东亚地区上三叠统. 最近, 在中国东北辽宁本溪中三叠统林家组中, 发现了一对正负面华丽尼尔桑标本, 是该种在中三叠统的首次发现. 该种的主要特征是羽叶的叶轴较细; 裂片的叶脉细而清晰, 略密, 近平行, 基本不分叉, 至顶端微上弯, 每厘米具脉约28条. 本研究根据现有标本及中国吉林天桥岭模式标本所显示的裂片和羽轴上下过渡关系, 对华丽尼尔桑的羽叶进行了重建, 并在此基础上探讨华丽尼尔桑的古地理起源与扩散. 该种在辽宁本溪林家组的发现不仅扩展了华丽尼尔桑的地质历史分布, 丰富了林家植物群面貌, 也有助于进一步了解二叠纪-三叠纪之交生物大灭绝后东北地区植物群的演替和发展.
Abstract:Nilssonia Brongniart 1825 is one of representatives of Cycadophyta. It was widely distributed in China and the world through geological time. Recently, a pair of specimens of Nilssonia splendens Sun 1993 was discovered from the Middle Triassic Linjia Formation of Benxi, Liaoning in Northeast China. The species differentiates form other species of Nilssonia in their leaves with a slender rachis; veins generally without bifurcation, clear and thinner, slightly dense, closely to parallel, slightly upward curving to the apex, occurring at concentration of 28 per cm. Since N. splendens was first identified by Sun in 1993, the species has only been documented in the Upper Triassic in East Asia. The present specimens are the first record from the Middle Triassic. According to the present fossil specimens, and the transitional relationships of laminar segments and rachis from type specimens of Tianqiaoling in Jilin, China, the reconstruction of N. splendens was suggested. The origin and diffusion of N. splendens suggest that this species from the Middle Triassic Linjia Formation, not only enlarges the knowledge in taxonomy of Nilssonia, but also provides an opportunity to understand the evolution of Nilssonia in the mass extinction through the Permian-Triassic transition and its subsequent recovery in Northeast China.
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Key words:
- Nilssonia splendens /
- Cycads /
- Middle Triassic /
- Linjia flora /
- paleogeography /
- Liaoning Province
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[1] Brongniart A. Observations sur les végétaux fossils renfermés dans les grès de Hoer en Scanie[J]. Annales des Sciences Naturelles, 1825, 4: 200-224.
[2] 斯行健, 李星学, 周志炎, 等. 中国植物化石(第二册): 中国中生代植物[M]. 北京: 科学出版社, 1963: 1-429.
Sze H C, Li X X, Zhou Z Y, et al. Chinese fossil plants Ⅱ. Mesozoic fossil plants from China[M]. Beijing: Sciences Press, 1963: 1-429. (in Chinese)
[3] 中国科学院南京地质古生物研究所, 中国科学院植物研究所《中国古生代植物》编写小组. 中国植物化石, 第一册中国古生代植物[M]. 北京: 科学出版社, 1974: 1-277.
Nanjing Institute of Geology and Palaeontology, CAS, Institute of Botany, CAS. Chinese fossil plants Ⅰ. Palaeozoic plants from China[M]. Beijing: Sciences Press, 1963: 1-277. (in Chinese)
[4] 胡雨帆. 铁雄果属化石在我国攀枝花首次发现及其意义[J]. 植物学报, 1995, 12(2): 31-35.
Hu Y F. First discovery of Androstrobus Schimper in Panzhihua, China and its Paleobiological and geological significance[J]. Chinese Bulletin of Botany, 1995, 12(2): 31-35.
[5] 韩明慧, 张宜, 郑少林, 等. 辽宁本溪中三叠世苏铁类密脉中国似查米亚[J]. 地质与资源, 2018, 27(1): 22-32, 53. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8430.shtml
Han M H, Zhang Y, Zheng S L, et al. Sinozamites myrioneurus (Cycadales) from the Middle Triassic strata in Benxi, Liaoning Province[J]. Geology and Resources, 2018, 27(1): 22-32, 53. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8430.shtml
[6] Pott C, McLoughlin S, Lindstrom A. Late Palaeozoic foliage from China displays affinities to Cycadales rather than to Bennettitales necessitating: A re-evaluation of the Palaeozoic Pterophyllum species[J]. Acta Palaeontologica Polonica, 2010, 55(1): 157-168. doi: 10.4202/app.2009.0070
[7] 徐仁, 朱家袡, 陈晔, 等. 中国晚三叠世宝鼎植物群[M]. 北京: 科学出版社, 1979: 1-130.
Xu R, Zhu J R, Chen Y, et al. Late Triassic baoding flora of China[M]. Beijing: Science Press, 1979: 1-130. (in Chinese)
[8] 孙革. 中国吉林天桥岭晚三叠世植物群[M]. 长春: 吉林科学技术出版社, 1993: 1-157.
Sun G. Late Triassic flora from Tianqiaoling of Jilin, China[M]. Changchun: Jilin Science and Technology Publishing House, 1993: 1-157. (in Chinese)
[9] Taylor T N, Taylor E L, Krings M. Paleobotany: The biology and evolution of fossil plants[M]. 2nd ed. Amsterdam: Elsevier, 2009: 1-1230.
[10] Yukawa H, Terada K, Sun G, et al. The oldest fossil forest in Japan discovered from the Upper Triassic Nariwa Group, Okayama Prefecture, SW Japan[J]. Okayama University Earth Science Report, 2012, 19(1): 25-37. (in Japanese with English abstract)
[11] 张武, 郑少林, 常绍泉. 辽宁本溪中三叠世林家植物群的研究[C]//中国地质科学院沈阳地质矿产研究所所刊, 1983, 8: 62-91.
Zhang W, Zheng S L, Chang S Q. Studies on the Middle Triassic plants from the Linjia Formation of Benxi, Liaoning Province[C]//Bulletin of the Shenyang Institute of Geology and Mineral Resources, Chinese Academy of Geological Sciences, 1983, 8: 62-91.
[12] 张宜, 郑少林, 李之彤, 等. 辽东本溪林家组属于中三叠世之锆石、古生物和地层证据[J]. 地质与资源, 2019, 28(5): 434-442. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8417.shtml
Zhang Y, Zheng S L, Li Z T, et al. The Linjia Formation in Benxi, East Liaoning Province assigned to Middle Triassic: Evidences from zircon, fossil and stratigraphy[J]. Geology and Resources, 2019, 28(5): 434-442. http://manu25.magtech.com.cn/Jweb_dzyzy/CN/abstract/abstract8417.shtml
[13] Zhang Y, Wang Y D, Hong Y, et al. Pleuromeia discovered from the Middle Triassic Linjia Formation of Benxi, Northeast China[J]. Palaeoworld, 2020, 29(4): 706-714. doi: 10.1016/j.palwor.2020.02.004
[14] 洪友崇. 辽宁本溪林家组的蜚蠊化石(昆虫纲)及时代讨论[C]//中国地质科学院沈阳地质矿产研究所所刊, 1983, 8: 57-61.
Hong Y C. Fossil Blattods (Insecta) from Linjia Formation of Benxi in Liaoning Province and discussion about their age[C]//Bulletin of the Shenyang Institute of Geology and Mineral Resources, Chinese Academy of Geological Sciences. 1983, 8: 57-61.
[15] 徐亦知, 岳宁, 刘石, 等. 辽宁本溪中三叠统林家瓣轮叶(新种)[J]. 古生物学报, 2020, 51(3): 329-344. https://www.cnki.com.cn/Article/CJFDTOTAL-GSWX202003005.htm
Xu Y Z, Yue N, Liu S, et al. Lobatannularia linjiaensis sp. nov. from the Middle Triassic of Benxi, Liaoning[J]. Acta Palaeontologica Sinica, 2020, 51(3): 329-344. https://www.cnki.com.cn/Article/CJFDTOTAL-GSWX202003005.htm
[16] 孙革. 准苏铁果属(Cycadocarpidium)在吉林汪清县晚三叠世地层的发现[J]. 古生物学报, 1979, 18(3): 312-325.
Sun G. On the discovery of Cycadocarpidium from the Upper Triassic of eastern Jilin[J]. Acta Palaeontologica Sinica, 1979, 18(3): 312-325.
[17] 吴水波, 孙革, 刘渭州, 等. 吉林东部托盘沟地区的上三迭统[J]. 地层学杂志, 1980, 4(3): 191-200. https://www.cnki.com.cn/Article/CJFDTOTAL-DCXZ198003001.htm
Wu S B, Sun G, Liu W Z, et al. The Upper Triassic of Tuopangou, Wangqing of eastern Jilin[J]. Journal of Stratigraphy, 1980, 4(3): 191-200. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DCXZ198003001.htm
[18] 孙克勤, 崔金钟, 王士俊. 中国化石植物志(第三卷): 中国化石裸子植物Ⅰ[M]. 北京: 高等教育出版社, 2016: 1-382.
Sun K Q, Cui J Z, Wang S J. Fossil flora of China (Ⅴ. Ⅲ): Fossil gymnosperms in China Ⅰ. [M]. Beijing: Higher Education Press, 2016: 1-382.
[19] 任守勤, 陈芬. 内蒙古海拉尔五九煤盆地早白垩世大磨拐河组植物化石[J]. 古生物学报, 1989, 28(5): 634-638, 705-707.
Ren S Q, Chen F. Fossil plants from Early Cretaceous Damoguaihe Formation in Wujiu coal basin, Hailar, Inner Mongolia[J]. Acta Palaeontologica Sinica, 1989, 28(5): 634-638, 705-707. (in Chinese)
[20] 陈芬, 孟祥营, 任守勤, 等. 辽宁阜新和铁法盆地早白垩世植物群及含煤地层[M]. 北京: 地质出版社, 1988: 1-180.
Chen F, Meng X Y, Ren S Q, et al. The Early Cretaceous flora of Fuxin Basin and Tiefa Bsain, Liaoning Province[M]. Beijing: Geological Publishing House, 1988: 1-180. (in Chinese)
[21] Halle T G. Paleozoic plants from central Shanxi[J]. Palaeontologia Sinica: Series A, 1927, 2(1): 1-316.
[22] Carruthers W. Ⅰ. -On Beania, a new genus of Cycadean fruit, from the Yorkshire Oolites[J]. Geological Magazine, 1869, 6(57): 97-99.
[23] Schimper W P. Traité de paléontologie végétal[M]. Paris: JB Baillière et Fils, 1870-1872: 1-966.
[24] Boucot A J, Xu C, Scotese C R. Phanerozoic paleoclimate: an atlas of lithologic indicators of climate[M]. Oklahoma: Society for Sedimentary Geology, 2013: 1-478.
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