New Research Progress on the Paleoflora in the Earliest Triassic of Western Guizhou and Eastern Yunnan, South China
-
摘要: 早三叠世华南地区海相沉积广为发育, 陆相沉积仅在海南岛和康滇古陆的东缘零星分布, 植物化石非常罕见.报道的植物化石采自黔西滇东陆相岔河剖面宣威组顶部、海陆过渡相密德剖面和土城剖面的卡以头组下部, 与晚二叠世晚期宣威组植物化石比较, 植物类型单调, 保存较破碎, 共计14属31种, 其中以Annalepis为主的石松纲5种; 楔叶纲5种; 真蕨纲包括7种形态类型; 种子蕨纲6种; 大羽羊齿类6种; 另未鉴定类型2种.从纲级分类看, 植物化石以石松纲和种子蕨纲为主要成分, 类型较多, 数量较大.这些植物化石不仅包括前人报道的该地区同一时期所有植物化石, 而且发现许多具有地层意义和演化意义的新类型, 如石松类Annalepis(脊囊属)植物化石(A. zeilleri, A. brevicystis)、种子蕨类Peltaspermum(盾籽属)、Lepidodendron(鳞木属)等.它们与早三叠世早期的海相动物化石(Bivalves, Ostracods, Brachiopods和Ammonites)同层或之上出现, 其地质时代暂属早三叠世早期.鉴于Annalepis在全球三叠纪地层分布时限及广布性, 提出以Annalepis的首次出现作为海陆过渡相三叠纪沉积的开始.通过对该植物组合中其成分的生态分析, 结合岩性特征, 认为黔西滇东地区早三叠世早期处在湿润的气候条件下.Abstract: Early Lower Triassic plants are little known in China, especially in South China. This paper presents the paleofloral assemblage from the top of Xuanwei and the lower of the Kayitou Formations in western Guizhou and eastern Yunnan, China. Fossil plants in this area (Annularia shirakii, Lobatannularia sp., Paracalamites stenocostatus, Gigantopteris sp., Pecopteris sp., which are all the Permian relicts) from the bottom of the Kayitou Formation described by other people in 1970s are covered. In addition, many important new fossil plants in the evolution during the Permian-Triassic interval, such as Isoetes Annalepis (including A. zeilleri, A. brevicystis), Peltaspermacae Peltaspermum (including P. martinsii, P. lobutalum, P. sp.), Lepidodendron and Stigmaria and so on are also reported. Both the new type and the "Gigantopteris-flora" relicts are characterized with the Early Triassic Induan paleofloral features in South China. This paleofloral assemblage contains 31 species in 14 genera. These fossil plants are in association with an early Lower Triassic marine fauna (Bivalves, Ostracods, Brachiopods and Ammonites). So the geological age of this paleoflora is Early Triassic Induan stage, while the FAD of Annalepis is regarded as the marker, representing the beginning of Triassic. Based on analyzing paleoflora and limnology of the top of Xuanwei and the lower of Kayitou Formations, it is concluded that tropical and humid conditions persisted in western Guizhou and eastern Yunnan throughout the Permian and Earliest Triassic.
-
图 1 研究区交通和剖面位置
1.密德部分；2.土城部分；3.岔河部分
Fig. 1. Traffic and section location of studying area, western Guizhou and eastern Yunnan
图 2 海陆交互相密德和土城剖面、陆相岔河剖面早三叠世卡以头组岩性柱状图
Fig. 2. Permian-Triassic boundary interval and the Lower Triassic Kayitou Formation of the mide, Tucheng and Chahe sections, western Guizhou and eastern Yunnan, South China
图 3 黔西滇东密德和土城剖面部分动物化石分布时限
Fig. 3. Global stratigraphical ranges of marine fossils from Kayitou Formation of the Mide and Tucheng sections, western Guizhou and eastern Yunnan, South China
图 4 黔西滇东与华北地区晚二叠世至早三叠世植物化石和沉积特征对比
Fig. 4. Correlating to mainly paleoflora elements and sedimentary characterstic between western Guizhou and eastern Yunnan and North China
表 1 研究区早三叠世植物化石层位分布
Table 1. Vertical distributions of Early Triassic fossil plants from the mide, Tucheng and Chahe sections, western Guizhou and eastern Yunnan, South China
属种名单 云南宣威 盘县土城 威宁岔河 16 19 20 21 22 23 24 25 17 18 19 20 21 22 23 24 69 70 71 石松纲植物 Lepidodendron sp. - - - - - - - - + + - - - - - - - - - Stigmaria ficoides - - - - - - - - - - - - - - - - + - - Stigmaria sp. - - - + - - - - + + - - - - - - - - - Annalepis zeilleri - + - + - - - - + + - - - - - - - - - Annalepis brevicystis - + - + - - - - + + - - - - - - - - - 楔叶纲植物 Paracalamites stenocostatus + - - - - - - - - - - - - - - - - - - Paracalamites sp. + - - - - - - - - - - - - - - - - - - Calamites sp. - - - - - - - - - - - - - - - - + - - Lobatannularia multifolia - - - - - - - - - - - - - - - - + - - Lobatannularia sp. - - - - - - - - - - - - - - - - + - - 真蕨纲植物 Sphenopteris sp. - - - - - - - - - - - - - + + - - - - Pecopteris sp. - - - + - - - - + + - - - + + - + - - Pecopteris elegantula - - - - - - - - - - - - - - - - + - - Pecopteris gracilenta - - - - - - - - - - - - - - - - + - - Pecopteris arcuata - - - - - - - - - - - - - - - - + - - Pecopteris taiyuanensis - - - - - - - - - - - - - - - - + - - Rajahia guizhouensis - - - - - - - - - - - - - - - - + - - 种子蕨纲植物 Peltaspermum martensii - + - + - + + - + + - - - + + - - - - Peltaspermum lobutalum - - - - - - - - - - - - - + + - - - - Peltaspermum sp. - + - + + - - - - - - - - + + - - + + Neuropteridium sp. - - - - - - - - - - - - - - - - + - - Compsopteris contracta - - - - - - - - - - - - - - - - + - - Compsopteris punctinervis - - - - - - - - - - - - - - - - + - - 大羽羊齿类植物 Gigantonoclea guizhouensis + - - - - - - - - - - - - + + - - - - Gigantonoclea lagrelii - - - - - - - - - - - - - - - - + - - Gigantonoclea sp. - - - - - - - - - - - - - - + + - - Gigantopteris nicotianaefolia - - - - - - - - - - - - - - - - + - - Gigantopteris dictvophylloides - - - - - - - - - - - - - + + - + - - Gigantopteris sp. + - - - - - - - - - - - - + + - - - - 
下载: 导出CSV
-
Blanckenhorn, M., 1886. Die fossile flora des buntsandsteins und des muschelkalks der umgegend von commern. Palaeontographica, 32: 117-153. http://www.schweizerbart.de/papers/palae/detail/32/61260 Cantrill, D.J., Webb, J.A., 1998. Permineralized pleuromeid lycopsid remains from the Early Triassic Arcadia Formation, Australia. Review of Palaeobotany and Palynology, 102: 189-211. doi: 10.1016/S0034-6667(98)80005-5 Fliche, P., 1910. Flore fossile du Trias en Lorraine et en France-Comte. Bulletin Social Science Nancy, Ⅲ(11): 1-297. http://ci.nii.ac.jp/ncid/BA80594817 Grauvogel-Stamm, L., 1978. La flore du Gres a Voltzia (Buntsandstein superieur) des Vosges du Nord (France), Morphologie, Anatomie, Interpretations phylogenique et paleogeographique. Science Geology Memory, 50: 1-225. http://www.researchgate.net/publication/259961768_La_flore_du_Gres_a_Voltzia_Buntsandsteinsuperieur_des_Vosges_du_Nord_France_Morphologie_anatomie_interpretation_phylogenetique_et_paleogeographie Li, X.X., 1995. Fossil floras of China through the geological ages. Guangdong Science and Technology Press, Guangdong, 229-253 (in Chinese). Mcloughlin, S., Lindstrom, S., Drinnan, A.N., 1997. Gondwana floristic and sedimentological trends during the Permian-Triassic transition: new evidence from the Amery group, northern Prince Charles Monutains, East Antarctica. Antarctica Science, 9(3): 281-298. doi: 10.1017/S0954102097000370 Meng, F.S., 1992. Fossil plants. In: Yichang Institute of Geology and Mineral Resources, ed., Geology in Hainan Island (Ⅰ): stratigraphy and paleontology. Geological Publishing House, Beijing (in Chinese). Meng, F.S., Zhang, Z.L., Niu, Z.J., 2000. Primitive Lycopsid flora in the Yangtze valley of China and systematics and evolution of Isoetes. Hunan Science and Technology Publishing House, Changsha (in Chinese). Schimper, W.P., Mougeot, A., 1844. Monographie des plantes fossiles du Gres bigarre de la chaine des Vosges. In: Engelmann, ed., Plants-Fossiles-France-Vosges, Leipizig, 83. Wang, L.X., Xie, Z.M., Wang, Z.Q., 1978. On the occurrence of Pleuromeia from the Qinshui basin in Shanxi Province. Acta Palaeontologica Sinica, 17(2): 195-212 (in Chinese with English abstract). http://www.researchgate.net/publication/284574544_On_the_occurrence_of_Pleuromeia_from_the_Qinshui_basin_in_Shanxi_Province Wang, S.Y., Yin, H.F., 2001. Discovery of microspherules in claystone near the terrestrial Permian-Triassic boundary. Geological Review, 47(4): 411-414 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZLP200104016.htm Wang, Z.Q., Wang, L.X., 1982. A new species of the Lycopsid Pleuromeia from the Early Triassic of Shanxi, China and its ecology. Palaeontology, 25(1): 215-225. http://forest.ckcest.cn/d/hxwx/AVkIPwY649MUqoKBLK6q.html Wang, Z.Q., Wang, L.X., 1989. Headway made in the studies of fossil plants from the Shiqianfeng Group in North China. Shanxi Geology, 4(1): 23-40 (in Chinese with English abstract). Wang, Z.Q., Wang, L.X., 1990. Later Early Triassic fossil plants from upper part of the Shiqianfeng Group in North China. Shanxi Geology, 5(2): 97-154 (in Chinese with English abstract). http://www.researchgate.net/publication/284415753_Late_Early_Triassic_fossil_plants_from_upper_part_of_the_Shiqianfeng_Group_in_North_China White, M.E., 1981. Cyclomeia undulata (Burges) gen. et comb. nov., a lycopod of the Early Triassic strata of New South Wales. Records of Australian Museum, 33(16): 723-734. doi: 10.3853/j.0067-1975.33.1981.270 Wood, G.R., Beeston, J.W., 1986. A Late Permian lycopod cone, Skilliostrobus sp. cf. S. australis Ash 1979 from Queensland. Geological Survey, 387: 41-49. http://www.researchgate.net/publication/284821161_A_late_Permian_lycopod_cone_Skilliostrobus_sp_cf_S_australis_Ash_1979_from_Queensland Yang, F.Q., Yin, H.F., Yu, J.X., et al., 2005. Study of the terrestrial Permian-Triassic boundary of the Chahe section, Weining, Guizhou Province. Science in China (Ser. D), 35(6): 519-529 (in Chinese). Yao, Z.Q., 1978. On the age of "Gigantopteris Coal Series" and Gigantopteris-Flora in South China. Acta Palaeontologica Sinica, 17(1): 81-89 (in Chinese with English abstract). http://www.researchgate.net/publication/284545150_On_the_age_of_Gigantopteris_Coal_Series_and_Gigantopteris_flora_in_South_China Yao, Z.Q., Liu, L.J., Rothwell, G.W., et al., 2000. Szecladia new genus, a Late Permian conifer with multiveined leaves from South China. Journal of Paleontology, 74(3): 524-531. doi: 10.1666/0022-3360(2000)074<0524:SNGALP>2.0.CO;2 Yin, H.F., Yang, F.Q., Yu, J.X., et al., 2007. An accurately delineated terrestrial Permian-Triassic boundary and its implication. Science in China (Ser. D), 50(9): 1281-1292. doi: 10.1007/s11430-007-0048-2 Yu, J.X., Peng, Y.Q., Yang, F.Q., et al., 2007a. Terristrial events across the Permian-Triassic boundary along the Yunnan-Guizhou border, SW China. Global and Planetary Change, 55: 193-208. doi: 10.1016/j.gloplacha.2006.06.013 Yu, J.X., Broutin, J., Berthelin, M., et al., 2007b. Early Early Triassic macroflora from the lower part of the Kayitou Formation in western Guizhou and eastern Yunnan, South China. Journal of China University of Geosciences, 18: 401-403. http://www.researchgate.net/publication/296109742_Early_early_Triassic_macroflora_from_lower_part_of_the_Kayitou_Formation_in_western_Guizhou_and_eastern_Yunnan_South_China Yu, J.X., Broutin, J., Huang, Q.S., et al., 2010. Annalepis, a pioneering Lycopsid genus in the recovery of the Triassic land flora in South China. Comptes Rendus Palevol, 9(8): 479-486. doi: 10.1016/j.crpv.2010.09.004 Yu, J.X., Huang, Q.S., Broutin, J., et al., 2008. The early Early Triassic Annalepis from western Guizhou and eastern Yunnan, South China. Acta Palaeontologica Sinica, 47(3): 292-300 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-GSWX200803006.htm Zhou, Z.Y., Li, B.X., 1979. A preliminary study of the Early Triassic plants from the Qionghai district, Hainan Island. Acta Palaeontologica Sinica, 18(5): 444-463 (in Chinese with English abstract). http://www.researchgate.net/publication/284936575_A_preliminary_study_of_the_Early_Triassic_plants_from_the_Qionghai_district_Hainan_Island 李星学, 1995. 中国地质时期植物群. 广东: 广东科技出版社, 229-253. 孟繁松, 1992. 古植物. 见: 地矿部宜昌地质矿产研究所编, 海南岛地质(一), 地层古生物. 北京: 地质出版社. 孟繁松, 张振来, 牛志军, 等, 2000. 长江流域原始石松植物群及水韭目植物分类与演化. 长沙: 湖南科学技术出版社. 王立新, 谢志民, 王自强, 1978. 山西沁水盆地早三叠世肋木属的发现及其地层意义. 古生物学报, 17(2): 195-212. https://www.cnki.com.cn/Article/CJFDTOTAL-GSWX197802007.htm 王尚彦, 殷鸿福, 2001. 滇黔地区陆相二叠系-三叠系界线附近粘土岩中发现微球粒. 地质评论, 47(4): 411-414. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP200104016.htm 王自强, 王立新, 1989. 华北石千峰群早三叠世早期植物化石. 山西地质, 4(1): 23-40. 王自强, 王立新, 1990. 华北石千峰群早三叠世晚期植物化石. 山西地质, 5(2): 97-154. 杨逢清, 殷鸿福, 喻建新, 等, 2005. 贵州威宁岔河陆相二叠系-三叠系界线地层研究. 中国科学(D辑), 35(6): 519-529. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200506004.htm 姚兆奇, 1978. 华南"大羽羊齿煤系"和大羽羊齿植物群的时代. 古生物学报, 17(1): 81-89. https://www.cnki.com.cn/Article/CJFDTOTAL-GSWX197801004.htm 喻建新, 黄其胜, Broutin, J., 等, 2008. 黔西滇东早三叠世早期Annalepis(脊囊属)的出现及其地层意义. 古生物学报, 47(3): 292-300. doi: 10.3969/j.issn.0001-6616.2008.03.004 周志炎, 厉宝贤, 1979. 海南岛琼海县九曲江早三叠世植物的初步研究. 古生物学报, 18(5): 444-463. https://www.cnki.com.cn/Article/CJFDTOTAL-GSWX197905003.htm -
点击查看大图
图(4) / 表(1)
计量
- 文章访问数: 3707
- HTML全文浏览量: 560
- PDF下载量: 72
- 被引次数: 0
