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云南临沧晚中新世一种水龙骨科植物化石的修订及其生物学意义

袁丽平, 解三平, 孙宇, 刘志伟, 陈杰, 郭虎

袁丽平, 解三平, 孙宇, 刘志伟, 陈杰, 郭虎. 2017: 云南临沧晚中新世一种水龙骨科植物化石的修订及其生物学意义. 地质通报, 36(8): 1334-1342.
引用本文: 袁丽平, 解三平, 孙宇, 刘志伟, 陈杰, 郭虎. 2017: 云南临沧晚中新世一种水龙骨科植物化石的修订及其生物学意义. 地质通报, 36(8): 1334-1342.
YUAN Liping, XIE Sanping, SUN Yu, LIU Zhiwei, CHEN Jie, GUO Hu. 2017: Revision on a fossil species of Late Miocene polypodiaceae from Lin-cang, Yunnan Province, and its biological significance. Geological Bulletin of China, 36(8): 1334-1342.
Citation: YUAN Liping, XIE Sanping, SUN Yu, LIU Zhiwei, CHEN Jie, GUO Hu. 2017: Revision on a fossil species of Late Miocene polypodiaceae from Lin-cang, Yunnan Province, and its biological significance. Geological Bulletin of China, 36(8): 1334-1342.

云南临沧晚中新世一种水龙骨科植物化石的修订及其生物学意义

基金项目: 

兰州大学2015年创新创业行动计划《云南中新世水龙骨科植物化石研究》 20151073001087

国家自然科学基金项目《云南双江-沧源新近纪植物多样性与古环境》 41172021

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)开放基金《云南临沧地区晚中新世果实和种子化石研究》 173126

详细信息
    作者简介:

    袁丽平(1994-), 女, 学士, 地球化学专业。E-mail:yuanlp13@lzu.edu.cn

    通讯作者:

    解三平(1977-), 男, 博士, 教授, 从事古植物学研究。E-mail:hai3p@163.com

  • 中图分类号: P534.62+1;Q914.2

Revision on a fossil species of Late Miocene polypodiaceae from Lin-cang, Yunnan Province, and its biological significance

  • 摘要:

    云南现代真蕨类植物资源丰富,蕨类植物多样性的地史起源,必须从化石记录入手。在云南临沧上中新统邦卖组植物化石采集中发现了槲蕨属1块不育叶和2块腐殖叶的新材料,这些标本为修订Drynaria propinqua Wen et al.,2013,以及揭示该种不育叶和腐殖叶的特征提供了新的材料。通过与槲蕨属国内外报道的化石种和现生种的详细比较,将其重新定名为Drynaria cf.propinquaDrynaria cf.propinqua的发现,表明云南临沧晚中新世的气候与现今中国西南地区温暖湿润的气候类似,这些附生植物的生活习性表明,临沧地区复杂分层的森林生态系统至少在晚中新世已经确立。

    Abstract:

    Yunnan Province is rich in resources of modern ferns. Understanding the origin and the diversity history of Yunnan ferns must learn from fossil records. Some new materials including one sterile frond and two humus fronds of the genus Drynaria were found in recent collections. These new specimens allow us to revise the previous fossil species Drynaria propinqua Wen et al., 2013, and provide supplementary characteristics of sterile and humus fronds for this species. On the basis of detailed morphological compari-son of fossils with extant species of Drynaria, the authors identified this species as Drynariacf. propinqua. The occurrence of Drynariacf. propinqua indicates that the Late Miocene climate of Lincang in Yunnan was similar to that of Southwest China today, being warm and humid. The epiphytic habit of its extant relative species implies that the complex hierarchical forest ecosystem of Lincang in Yunnan had been established at least in Late Miocene.

  • 致谢: 感谢兰州大学李宏、王磊、温雯雯、邵洋、王云峰、李斌科硕士研究生在野外化石采集中给予帮助,感谢王雪莲在实验和拍照过程中的指导与帮助。
  • 图  1   化石采集点位置[12]

    Figure  1.   Fossil locality of Lincang in Yunnan Province

    图版Ⅰ  

    a、c~h. Drynaria cf. propinqua,标本号:LDGSW20151671;b. Drynaria propinqua中国数字植物标本馆,条形码:PE01192703;c~h为a的细节特写图,c表示锯齿状叶缘,d表示粗的主脉,e~f表示二级脉形态,g表示基部下延,h表示中轴及三级脉的脉络;i~l. Drynariapropinqua,中国科学院昆明植物研究所,条形码:KUN 0841026,其中i表示锯齿状叶缘,j为粗的主脉,k为基部下延,l为中轴及三级脉的脉络

    图版Ⅰ.  

    图版Ⅱ  

    a~b. Drynaria propinqua,中国数字植物标本馆条形码:KUN 1220955、KUN 1228941;c~g.Drynaria cf. propinqua,标本号:MCD090220-033 (A,B),d~g为c的细节特写图,d表示粗的主脉及对生的二级脉,e表示互生的二级脉,f~g表示三级脉的脉络

    图版Ⅱ.  

    图  2   现生种Drynaria propinqua分布图(现生种范围据参考文献[1],世界地图底图据参考文献[12])

    Figure  2.   Geographic distribution of the extant species Drynaria propinqua

    表  1   槲蕨属不育叶化石与现生种对比

    Table  1   Comparison of sterile frond between fossilDrynaria cf.propinqua and other fossils and extant species of Drynaria

    种类边缘叶形主脉二级脉三级脉网眼状结构叶长/cm叶宽/cm基部形状叶的顶端形状来源
    化石种D. callispora全缘卵圆形-椭圆形明显,直直或之字形可见存在,呈不规则或四边形3.5~3.871.17~1.51下延、收缩急尖或钝[4]
    D. dimorpha锯齿贝壳状明显之字形、未达缘可见存在,呈不规则或四边形保存部分10~15.87.5~12.8下延、明显收缩急尖或钝[5]
    D. cf. propinqua锯齿椭圆倒披针形明显可见、上攀式弯曲、纤细,直或之字形、未达缘或达缘可见存在,线性自由小脉,以五边形为主保存部分10~111.5~1.9下延NA本文;[6]
    现生种D. propinqua锯齿三角形-卵形明显明显,直,未达缘可见存在(20-)30~50(-60)(12-)20~30NA尖头[120]
    D. roosii不明显的疏钝齿披针状明显明显,之字形可见存在20~4510~15(-20)心形急尖或钝[120]
    D. quercifolia锯齿长圆形明显明显,直可见存在,无内藏小脉40~10040心形渐尖[120]
    D. rigidula圆齿状-锯齿状卵形突起突起,直明显突出,显著,网眼小、不整齐25~100(-200)12~50渐狭而呈楔形渐尖[120]
    D. mollis全缘椭圆形突起突起明显突出,显著20~40(-50)7~12(-15)心脏形圆钝[120]
    D. parishii近全缘或略折皱三角形向下突起明显,直可见存在,相邻两侧脉间有3~5行网眼,有内藏分离小脉2520NA尖头或渐尖头[120]
    D. sparsisora全缘四角形-卵圆形NANANANANANANA[22]
    D. willdenowii锯齿四角形-卵圆形突起,明显可见存在,明显NANANANA[22]
    D. laurentii锯齿四角形-卵圆形NANANANANANANA[22]
    D. descensa全缘四角形-卵圆形NA明显,之字形NANANANANANA[22]
    D. pleuridioides全缘四角形-卵圆形可见,明显之字形可见NANANANANA[22]
    D. involuta全缘四角形突起,明显明显,直可见存在,明显NANANANA[22]
    D. volkensii锯齿四角形-卵圆形突起,明显之字形可见存在,明显NANANANA[22]
    D. delavayi浅缺刻卵圆形-椭圆形突起突起,之字形明显突出、显著,大都有内藏小脉25~4512~18耳形尖头[12023]
    D. bonii近全缘-浅波状长圆状卵形明显,粗细程度一般明显,之字形,纤细,达缘可见存在,横脉明显,在每对侧脉之间构成5~6个大网眼,大网眼内有几个不整齐的小网眼,内藏小脉单一或很少分叉30~7020~30稍狭长而下延钝头至长渐尖[12024]
    D. baronii锯齿状狭长圆形NANA可见清晰,大都有内藏小脉22~507~12阔卵形尖头或钝头[12025]
    注:NA—不可用
    下载: 导出CSV

    表  2   槲蕨属腐殖叶化石与现生种对比

    Table  2   Comparison of humus fronds between fossil Drynaria cf. propinqua and other fossils and extant species of Drynaria

    种类边缘叶形主脉二级脉三级脉网眼状结构叶长/cm叶宽/cm基部形状叶的顶端形状来源
    化石种D. cf. propinquaNANA粗壮明显,粗可见,之字形存在,以五边形为主、线性的自由小脉NANANANA本文
    现生种D. propinqua不规则齿状圆形或卵圆形明显明显NANA10~207~18NA圆钝或尖头[120]
    D. bonii全缘或有圆形的浅裂卵圆形-椭圆形明显,粗壮明显,粗明显存在,小脉下面明显而隆起,联结成伸长的网眼,少数有单一的内藏短小脉(4-)10~15(3.5-)8~12浅心脏形而有互相覆盖的耳钝或圆[120]
    D. delavayi略成齿状卵圆形-椭圆形明显明显NANA6~134~10耳状NA[120]
    D. mollis全缘椭圆形明显明显明显存在,叶轴两侧有明显的1行大网眼7~153~7心脏形,两侧有相互覆盖的耳钝或尖头[120]
    D. quercifolia浅裂-深裂, 叶顶全缘卵形NA粗壮,上部的斜向上,中部的平展,下部的向下反折成弧形可见存在,侧脉之间有曲折而不明晰的横脉相连,小脉连结成伸长的网眼,一般无内藏小脉15~5010~30心脏形而有耳钝圆[120]
    D. roosii全缘心形NANANANA(2-)5~9(2-)3~7NANA[120]
    D. rigidula不规则细微齿状长卵形明显明显NANA10~305~15心脏形而有耳尖头-锐尖头[120]
    D. baronii略成齿状椭圆形NANANANA3~153~6狭窄的,不是心形也不是耳状NA[120]
    注:NA—不可用
    下载: 导出CSV
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    Jacques F M B, Su T, Spicer R A, et al.Leaf physiognomy and cli-mate:are monsoon systems different?[J]. Global and Planetary Change, 2011, 76:56-62. doi: 10.1016/j.gloplacha.2010.11.009

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出版历程
  • 收稿日期:  2016-11-16
  • 修回日期:  2017-06-14
  • 网络出版日期:  2023-08-15
  • 刊出日期:  2017-07-31

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