A late Early Jurassic flora from Xilinhot Basin of Inner Mongolia,with discussions on coeval climate in China
Deng Shenghui1,2,3, Shang Ping4, Lu Yuanzheng1,2,3, Zhao Yi5, Li Xin1,2,3, Fan Ru1,2,3, Dong Shuxin6
1 Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083; 2 State Key Laboratory of Enhanced Oil Recovery of China,Beijing 100083; 3 Key Laboratory of Oil and Gas Reservoir,CNPC,Beijing 100083; 4 College of Marine Science and Engineering, Tianjin University of Science and Technology,Tianjin 300457; 5 School of Earth Sciences and Resouces, China University of Geosciences(Beijing),Beijing 100083; 6 Foreign Language Department, China University of Geosciences(Beijing), Beijing 100083
Abstract：The flora from the Jurassic Hongqi Formation of the Xilinhot Basin,Inner Mongolia,North China,is composed of 37 species in 21 genera:Equisetites sp. and Neocalamites sp. of Equisetales;Hausmannia ussuriensis Kryshtofovich,H. leeiana Sze,Coniopteris bella Harris,C. sp.,Eboracia lobifolia(Phillips)Thomas,Todites williamsonia(Bronign.)Seward,Cladophlebis angutula (Heer)Fontaine,Cl. asiatica Chow et Yeh,Cl. cf. asiatica Chow et Yeh,Cl. haiburnensis(L. et H.)Bronigniart,Cl. hsiehiana Sze, Cl. lobifolia(Phillips)Bronigniart, Cl.ingens Harris,Cl.pseudoraciborskii Srebrodolskaja,Cl. shansiensis,Cl. scariosa Harris Sze and Cl. sp. nov. of Filicopsida;Anomozamites turkmenicus Burakova,Nilssoniopteris angustifolia Wang,Ptilophyllum contiguum Sze,Pterophyllum sp.,Nilssonia sp. nov. and Ctenis sp. of Cycadopsida;Ginkgoites ferganensis Brick,Ginkgoites hottonii (Sternb.)Heer, Phoenicopsis angustifolia Heer,Czekanowskia setacea Heer, Cz. latifolia Turutanova-Ketova and Sphenobaiera sp. of Ginkgopsida;Elatocladus sp.1, Elatocladus sp.2,Podozamites eichwaldi Schimper,Pityophyllum longifolium(Nath.)Moeller and Pityophyllum sp. of Coniferopsida and seed Carpolithus sp. The flora is characterized by abundant ferns and appearance of Coniopteris and Eboracia of the Dicksoniacea and some thermophilous elements. The thermophilous plants include dipteridaceous fern Hausmannia and Ptilophyllum of Bennettitales. The age of the flora is late Early Jurassic and most possibly the Toarcian. The age of the Hongqi Formation is chiefly late Early Jurassic and its upper part is possibly the early Middle Jurassic. The appearance of the climate sensitive plants,particularly the south-type(thermophilous)elements,indicates that the Xilinhot Basin was located in the warm temperate zone-subtropic zone during the late Early Jurassic. It was warmer than that of the early Early Jurassic and early Middle Jurassic,indicating a temperature raising event in the late Early Jurassic. Based on the palaeontological and sedimentary data, there existed 5 palaeoclimatic regions during the late Early Jurassic in China,namely the eastern Heilongjiang warm-cool climatic region,North China warm-temperate and warm-humid climatic region,central China tropic-subtropical semi-arid and semi-humid climatic region,central-southern China tropic-subtropical arid climatic region and the Tibet-western Yunnan tropical arid climatic region. The boundary between the warm-temperate warm-humid climatic region and the tropic-subtropical semi-arid and semi-humid climatic region was about 4-8 degrees of latitude northwards than both in the early Early Jurassic and early Middle Jurassic,also indicating a temperature arising event occurred in the late Early Jurassic. This climatic event most possibly happened in the Toarcian of Early Jurassic and is likely the response of the terrestrial ecological system to the Toarcian Oceanic Anoxic Event(T-OAE).
Deng Shenghui,Shang Ping,Lu Yuanzheng et al. A late Early Jurassic flora from Xilinhot Basin of Inner Mongolia,with discussions on coeval climate in China[J]. JOPC, 2015, 17(5): 617-634.
蔡绍英. 1986. 四川威远自流井组马鞍山段淡水双壳类化石[J]. 古生物学报,25(5):560-567. 陈芬,窦亚伟,黄其胜. 1984. 北京西山侏罗纪植物群[M]. 北京:地质出版社,1-136. 陈金华,章伯乐. 1997. 河南义马组珠蚌类化石:兼论华南、华北早、中侏罗世珠蚌类生物群对比[J]. 古生物学报,36(3):321-333. 邓胜徽. 2007. 中生代主要植物化石的古气候指示意义[J]. 古地理学报,9(6):560-574. 邓胜徽,陈芬. 2001. 中国东北地区早白垩世真蕨类植物[M]. 北京:地质出版社,1-249. 邓胜徽,程显胜,齐雪峰,等. 2000. 新疆准噶尔盆地晚三叠世—早侏罗世植物组合序列[C]. 见:《第三届全国地层会议论文集》编委会编. 第三届全国地层会议论文集. 北京:地质出版社,174-178. 邓胜徽,卢远征,燓茹,等. 2010. 新疆北部的侏罗系[M]. 安徽合肥:中国科技大学出版社,1-219. 邓胜徽,卢远征,樊茹,等. 2012. 早侏罗世Toarcian期大洋缺氧事件及其在陆地生态系统中的响应[J]. 地球科学,37(增刊2):68-73. 邓胜徽,姚益民,叶得泉,等. 2003. 中国北方侏罗系(Ⅰ):地层划分与对比[M]. 北京:石油工业出版社,1-399. 地质矿产部天津地质矿产研究所. 1984. 华北地区古生物图册(二):中生代分册[M]. 北京:地质出版社,1-384. 冯少南,孟繁松,陈公信,等. 1977. 植物界[M]. 见:湖北省地质科学研究所,河南省地质局,湖北省地质局,等. 中南地区古生物图册(三):中新生代部分. 北京:地质出版社,195-262. 广西壮族自治区地质矿产局. 1985. 广西壮族自治区区域地质志[M]. 北京:地质出版社,1-853. 何德长. 1987. 榆林、神木、府谷地区延安植物群[M]. 见:钱丽君,等. 陕西北部侏罗纪含煤地层及聚煤特征. 陕西西安:西北大学出版社,75-85. 何元良,吴向午. 1986. 中国中侏罗世阿伦期植物群[J]. 古生物学报,25(6):591-601. 黄枝高,周惠琴. 1980. 古植物[M]. 见:中国地质科学院地质研究所. 陕甘宁盆地中生代地层古生物(1). 北京:地质出版社,43-114. 李建忠,冯心涛,朱同兴,等. 2006. 藏南特提斯喜马拉雅构造古地磁新结果[J]. 自然科学进展,16(5):578-583. 李佩娟,何元良,吴向午,等. 1988. 青海柴达木盆地东北缘早、中侏罗世地层及植物群[M]. 江苏南京:南京大学出版社,1-231. 李星学. 1954. 内蒙古大青山石拐子煤田的地层及其间几个不整合的意义[J]. 地质学报,34(4):411-436. 李永铁,罗建宁,卢辉楠,等. 2001. 青藏高原地层[M]. 北京:科学出版社,1-542. 厉宝贤,胡斌. 1984. 山西大同永定庄组植物化石[J]. 古生物学报,23(2):135-147. 刘子进. 1982a. 古植物[M]. 见:西安地质矿产研究所. 西北地区古生物图册:陕甘宁分册(三):中、新生代部分. 北京:地质出版社,116-139. 刘子进. 1982b. 甘肃东部早侏罗世地层及植物群的初步研究[J]. 中国地质科学院西安地质矿产研究所所刊,5:87-100. 马秀,罗来林,徐文德,等. 1974. 中华人民共和国区域地质调查报告(地质部分): 锡林浩特幅[M]. 内蒙古呼和浩特:内蒙古自治区区域地质测量队,1-116. 米家榕,孙春林,孙跃武,等. 1996. 冀北辽西早、中侏罗世植物古生态学及聚煤环境[M]. 北京:地质出版社,1-169. 内蒙古自治区地矿局. 1991. 内蒙古自治区区域地质志[M]. 北京:地质出版社,1-725. 内蒙古自治区地矿局. 1996. 内蒙古自治区岩石地层[M]. 湖北武汉:中国地质大学出版社,1-344. 内蒙古自治区地质局,东北地质科学研究所. 1976. 华北地区古生物图册:内蒙古分册(二):中、新生代部分[M]. 北京:地质出版社,1-261. 内蒙古自治区区域地层表编写组. 1978. 华北地区区域地层表:内蒙古自治区分册[M]. 北京:地质出版社. 商平,付国斌,侯全政,等. 1999. 新疆哈盆地中侏罗世植物化石[J]. 现代地质,13(4):403-407. 邵济安,唐克东. 1991. 那丹哈达地体的构造特征及演化[J]. 中国科学(B辑),7:744-751. 沈光隆,谷祖刚,李克定. 1976. 甘肃靖远乌苏里荷叶蕨的补充材料[J]. 兰州大学学报(自然科学版),3:71-81. 斯行健. 1933. 中国中生代植物[M]. 中国古生物志,甲种,4号,1册: 1-68. 斯行健,李星学,等. 1963. 中国中生代植物[M]. 见:中国各门类化石,中国植物化石,第二册. 北京:科学出版社,1-429. 斯行健,周志炎. 1962. 中国中生代陆相地层: 全国地层会议学术报告汇编[M]. 北京:科学出版社,24-116. 孙柏年. 1986. 兰州窑街煤田中侏罗世植物化石的初步研究[J]. 兰州大学学报(自然科学版),22(1):113-118. 孙柏年. 1992. 甘肃靖远煤田早中生代植物化石组合序列[J]. 兰州大学学报(自然科学版),28(3):163-167. 孙革. 1993. 中国天桥岭晚三叠世植物群[M]. 吉林长春:吉林科科学技术出版社,1-157. 王自强. 1984. 植物界[M]. 见:地质矿产部天津地质矿产研究所. 华北地区古生物图册(二): 中生代分册. 北京:地质出版社,226-303. 吴绍祖. 1990. 新疆早侏罗纪植物群特征[J]. 新疆地质,8(2):119-131. 吴舜卿. 1983. 试论中国晚三叠世和早、中侏罗世的植物群及其地理分区[M]. 见:古生物学基础理论丛书编委会. 中国古生物地理区系. 北京:科学出版社,121-130. 吴舜卿. 1999. 四川晚三叠世须家河组植物化石新记述[J]. 中国科学院南京地质古生物研究所丛刊,14:1-69. 吴舜卿,周汉忠. 1986. 天山东部早侏罗世早期植物化石[J]. 古生物学报,25(6):636-647. 吴向午,邓胜徽,张亚玲. 2002. 潮水盆地侏罗纪植物化石[J]. Palaeoworld,14:136-201. 吴向午,何元良,梅盛吴. 1986. 似麻黄属Ephedrites在青海下侏罗统小煤沟组的发现[J]. 古植物学与孢粉学文集,1:13-22. 徐福祥. 1986a. 甘肃靖远早侏罗世植物化石[J]. 古生物学报,25(1):417-425. 徐福祥. 1986b. 甘肃中生代植物概述[J]. 甘肃地质,(5):105-116. 杨兵,张雄华,葛梦春,等. 2013. 内蒙古锡林浩特侏罗纪红旗组孢粉化石的发现及其古气候意义[J]. 地质科技情报,32(1):143-147. 杨恕,沈光隆. 1988. 兰州阿干镇煤田下侏罗统大西沟组植物化石的特点及时代[J]. 兰州大学学报(自然科学版),24(4):139-144. 杨学林,孙礼文. 1985. 大兴安岭南部侏罗纪植物化石[J]. 中国地质科学院沈阳地质矿产研究所所刊,12:89-111. 叶美娜,刘兴义,黄国清,等. 1986. 川东北地区晚三叠世及早、中侏罗世植物[M]. 安徽合肥:安徽科学技术出版社,1-141. 叶祥华,李家福. 1987. 古地磁与西藏板块及特提斯的古地磁及演化[J]. 成都地质学院学报,14(1):65-79. 曾勇,沈树忠,范炳恒. 1995. 豫西义马组植物群研究[M]. 江西南昌:江西科学技术出版社,1-92. 张泓,等. 1998. 中国西北侏罗纪含煤地层聚煤规律[M]. 北京:地质出版社,1-317. 张庆龙,水谷伸治. 1989. 黑龙江省那丹哈达地体构造初探[J]. 地质论评,35(1):67-71. 张武,郑少林. 1987. 辽宁西部地区早中生代植物化石[M]. 见:于希汉,等. 辽宁西部中生代地层古生物(3). 北京:地质出版社,239-368. 张武,张志诚,郑少林. 1980. 蕨类植物门和裸子植物亚门[M]. 见:沈阳地质矿产研究所. 东北地区古生物图册(二): 中新生代分册. 北京:地质出版社,222-291. 张志诚. 1976. 植物界[M]. 见:内蒙古自治区地质局,东北地质科学研究所. 华北地区古生物图册: 内蒙古分册(二): 中、新生代部分. 北京:地质出版社,179-211. 赵应成,魏东涛,马志强,等. 2003. 中国北方侏罗系(Ⅳ): 祁连地层区[M]. 北京:石油工业出版社,1-239. 郑少林,张武. 1990. 辽宁田师傅早侏罗世植物群[J]. 辽宁地质,(3):212-237. 钟筱春,赵传本,杨时中,等. 2003. 中国北方侏罗系(Ⅱ): 古环境与油气[M]. 北京:石油工业出版社,1-201. 周志炎. 1984. 湘西南早侏罗世早期植物化石[J]. 中国古生物志,总号第165册,新甲种,7:1-85. 周志炎. 1995. 侏罗纪植物群[M]. 见:李星学. 中国地质历史时期植物群. 广东广州:广东科技出版社,260-309. 周志炎,章伯乐. 1988. 河南义马中侏罗世两种银杏目的雄性生殖器官[J]. 科学通报,33(3):216-217. Al-Suwaidi A H,Angelozzi G N,Baudin F, et al. 2010. First record of the Early Toarcian Oceanic Anoxic Event from the Southern Hemisphere,Neuquén Basin,Argentina[J]. Journal of the Geological Society of London,167:633-636. Brick M Ⅰ. 1953. Mesozoic flora from East Fergana:Ferns[M]. Trudy Sovjet Sci. Geol. Inst.,1-112(In Russian). Caruthers A H,Grcke D R,Smith P L. 2011. The significance of an Early Jurassic(Toarcian)carbon-isotope excursion in Haida Gwaii(Queen Charlotte Islands),British Columbia,Canada[J]. Earth and Planetary Science Letters,307:19-26. Cohen A S,Coe A L,Harding S M, et al. 2004. Osmium isotope evidence for the regulation of atmospheric CO2 by continental weathering[J]. Geology,32:157-160. Cohen A S,Coe A L,Kemp D B. 2007. The Late Paleocene-Early Eocene and Toarcian(Early Jurassic)carbon isotope excursions:A comparison of their time scales,associated environmental changes,causes and consequences[J]. Journal of the Geological Society of London,164:1093-1108. Deng S H,Lu Y Z. 2006. The Mesozoic dicksoniaceous ferns:Characteristics,distribution and origin and evolutionary trends[J]. Global Plant Letters,1(1):9-29. Deng S H,Lu Y Z,Fan R, et al. 2010. The Jurassic of Northern Xinjiang[M]. Anhui Hefei: University of Science and Technology of China Press,1-279. Dera G,Neige P,Dommergues J, et al. 2010. High-resolution dynamics of Early Jurassic marine extinctions:The case of Pliensbachian-Toarcian ammonites(Cephalopoda)[J]. Journal of the Geological Society of London,167:21-33. Grcke D R,Hori R S,Trabucho-Alexandre J, et al. 2011. An open marine record of the Toarcian oceanic anoxic event[J]. Solid Earth Discussions,3:385-410. Harris T M. 1961. The Yorkshire Jurassic Flora,Ⅰ. Thallophyta-Pteridophyta[M]. London:Brit. Mus.(Nat. Hist.),1-212. Hesselbo S P,Pieńkowski G. 2011. Stepwiseatmospheri carbon-isotope excursion during the Toarcian Oceanic Anoxic event(Early Jurassic,Polish basin)[J]. Earth Planetary Science Letter,301:365-372. Hesselbo S P,Jenkyns H C,Duarte L V, et al. 2007. Carbon-isotope record of the Early Jurassic(Toarcian)Oceanic Anoxic Event from fossil wood and marine carbonate(Lusitanian Basin,Portugal)[J]. Earth and Planetary Science Letters,253:455-470. Ilyna V Ⅰ. 1985. Jurassic Palynology of Siberia[M]. Moscow:Nauka,1-237(in Russian). Izumi K,Miyaji T,Tanabe K. 2012. Early Toarcian(Early Jurassic)oceanic anoxic event recorded in the shelf deposits in the northwestern Panthalassa:Evidence from the Nishinakayama Formation in the Toyora area,west Japan[J]. Palaeogeography,Palaeoclimatology,Palaeoecology,315-316:100-108. Jenkyns H C. 1988. The early Toarcian(Jurassic)anoxic event:Stratigraphic,sedimentary and geochemical evidence[J]. American Journal of Science,288:101-151. Kafousia N,Karakitsios V,Jenkyns H C. 2010. Preliminary data from the first record of the Toarcian Oceanic Anoxic Event in the sediments of the Pindos Zone(Greece)[J]. Bulletin of the Geological society of Greece,43(2):627-633. Kimura T,Kim B K. 1984. General review on the Daedong flora[J]. Korea,Bell. Tokyo Gakugei Univ. Sect.,4(36):201-236. Kirichkova A Ⅰ. 1985. Phytostratigraphy and Flora of Jurassic and Lower Cretaceous Deposits of Lena Basin[M]. Leningrad:Nedra,1-223(in Russian). Kryshtofovich A N. 1923. Pleuromia and Hausmannia in eastern Siberia,with a summary of recent contributions to the Paleobotany of the region[J]. Amer. Journ. Sci.,5(1):200-208. Little C T S,Benton M J. 1995. Early Jurassic mass extinction:A global long-term event[J]. Geology,23:495-498. Macchioni F,Cecca F. 2002. Biodiversity and biogeography of middle-late liassic ammonoids:Implications for the Early Toarcian mass extinction[J]. Geobios,35:165-175. McArthur A G,Algeo T J,van de Schootbrugge B, et al. 2008. Basinal restriction,black shales,Re-Os dating,and the Early Toarcian(Jurassic)oceanic anoxic event[J]. Paleoceanography,23:PA4217. doi:10.1029/2008PA001607. McElwain J C,Wade-Murphy J,Hesselbo S P. 2005. Changes in carbon dioxide during an oceanic anoxic event linked to intrusion into Gondwana coals[J]. Nature,435:479-482. Oishi S. 1932. The Rhatic plants from the Nariwa district,Prov. Bitchu(Okayama Prefecture),Japan[J]. Jap. Joun. Fac. Sci. Hookkaido Imp. Univ.,Ser. Ⅳ,1(3-4):257-380. Pearce C R,Cohen A S,Coe A L, et al. 2008. Molybdenum isotope evidence for global ocean anoxia coupled with perturbations to the carbon cycle during the Early Jurassic[J]. Geology,36:231-234. Samylina V A,Yefimova A F. 1968. First finds of Early Jurassic flora from Kolyma River Basin[J]. Dokl. AN SSSR,179(1):166-168(in Russian). Svensen H,Planke S,Chevallier L, et al. 2007. Hydrothermal venting of greenhouse gases triggering Early Jurassic global warming[J]. Earth and Planetary Science Letters,256:554-566. Teclehko J W. 1970. Stratigraphy and flora of Jurassic deposits in Eastern Transbaikalia[J]. Geology and Geophysics,10:41-46(in Russian). Vakhrameev V A. 1982. Classopollis pollen as an indicator of Jurassic and Cretaceous climate[J]. International Geology Review,24(10):1190-1196. Vakhrameev V A. 1991. Jurassic and Cretaceous Floras and Climates of the Earth[M]. Cambridge:Cambridge University Press,1-318. Vakhrameev V A,Doludenko M. 1961. Upper Jurassic and Lower Cretaceous Flora of the Bureja Basin and Its Significance for Stratigraphy[M]. USSR Acad. Sci. Trans.,208(in Russian). Wang Y D. 2002. Fern ecological implications from the Lower Jurassic in Western Hubei,China[J]. Rev. Palaeobot. Palynol.,119:125-141. Wang Y D,Zhang H. 2010. Fertile organs and in situ spores of a new dipteridaceous fern(Hausmannia sinensis)from the Jurassic of northern China[J]. Proceedings of Royal Society B,277:311-320. Wang Y D,Mosbrugger V,Zhang H. 2005. Early to Middle Jurassic vegetation and climatic events in the Qaidam Basin,Northwest China[J]. Palaeogeography,Palaeoclimatology,Palaeoecology,224:200-216. Wignall P B,Newton R J,Little C T S. 2005. The timing of paleoenvironmental change and cause-and-effect relationships during the Early Jurassic mass extinction in Europe[J]. American Journal of Science,305:1014-1032. Yang X J,Deng S H,Li W B. 2006. A new cheirolepidiaceous conifer from the Early Jurassic of Jurggar Basin,north Xinjiang and its paleoclimatic implications[J]. Progress in Natural Science,16(Special Issue):231-235.张西娟
