| 中国二叠纪苏铁科新属、种——古生铁花 |
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| 引用本文： | 朱家木冉,张秀生,马洁.中国二叠纪苏铁科新属、种——古生铁花[J].中国科学院研究生院学报,1994,32(4):340-344. |
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| 作者姓名： | 朱家木冉 张秀生 马洁 |
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| 摘 要： | 本文是继中国始苏铁Primocycas chinensis Zhu et Du之后，又报道一种古植物文献未见记载的早二叠世晚期苏铁科小孢子叶球，命名为古生铁花(新属、种)Cycadostrobilus paleozoicus Zhu，gen. et.sp．nov．标本采自我国山西省太原市东山煤矿的下石盒子组，它是世界迄今已知的一种最古老的小孢子叶球化石。和本新属同层发现的化石，除了中国始苏铁之外，还有楔叶Sphenophyllum、齿叶Tingia，楔羊齿Sphenopteris、楔叶羊齿Sphenopteridium、织羊齿Emplectopteris、栉羊齿Pecopteris、大芦孢穗Macrostachya、科达Cordaites、带羊齿Taeniopteris、角籽Cornucarpus和几种也未见记载而形态又非常特殊的植物。本文认为当前报道的古生铁花(新属、种)很可能和中国始苏铁同属一种植物，其营养叶可能是疏脉带羊齿Taeniopteris norinii Halle。
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| 关 键 词： | 山西 下石盒子组 古生铁花 中国始苏铁 疏脉带羊齿 |
A New Genus and Species—Cycadostrobilus paleozoicus Zhu of Cycadaceae from the Permian of China |
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| Zhu Jia-nan,Zhang Xiu-sheng,Ma Jie.A New Genus and Species—Cycadostrobilus paleozoicus Zhu of Cycadaceae from the Permian of China[J].Journal of the Graduate School of the Chinese Academy of Sciences,1994,32(4):340-344. |
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| Authors: | Zhu Jia-nan Zhang Xiu-sheng Ma Jie |
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| Abstract: | This paper describes a new microstrobilus of palaeozoic Cycadaceae collected from
the upper part of Lower Shihezi Formation, Dongshan Mine, Taiyuan, Shanxi, China and
named it as Cycadostrobilus paleozoicus Zhu, gen. et sp. nov. This new cycad is the oldest
microstrobilus to our knowlege of cycads. In the same locality and layer, there are Primocy-
cas chinensis Zhu et Du, Sphenophyllum emarginatum Brongn. , S. costae Sterz. , S. vertical-
latum (Schloth.) Brongn. , S. oblongifolium (Germ. et Kaulf. ) Ung. , Tingia carbonica
(Schenk.) Halle, T. hamaguchii Kon’no, Macrostachys huttoniformis Halle, Sphenopteris
norinii Halle, S. firmata Sze, S. gothanii Halle, Sphenopteridium pseudogermanicum
(Halle) Gu et Zhi, Pecopteris feminaeformis (Schloth.) Sterz. , P. wongii Halle, P. tuber-
culata Halle, P. unita Brongn. , P. taiyuanensis Halle, Emplectopteris triangularis Halle,
Taeniopteris norinii Halle, T. spp. , Cordaites principalis (Germ.) Gein. , Cornucarpus patu-
lus Halle, Radicites spp. and a few taxa unknown to palaeobotanical data. The authors con-
sider that Cycadostrobilus paleozoicus is the same species as Primocycas chinensis, and its veg.etative leaves are similar to those of the genus Taeniopteris, e.g.T. norinii Halle. |
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| Keywords: | Shanxi Lower Shihezi Formation Cycadostrobilus paleozoicus Primocycas chinensis Taeniopteris norinii |
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