| 中国早白垩纪被子植物生殖器官 |
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| 引用本文： | 陶君容,张川波.中国早白垩纪被子植物生殖器官[J].中国科学院研究生院学报,1992,30(5):423-426. |
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| 作者姓名： | 陶君容 张川波 |
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| 摘 要： | 自1990年报道了产自我国延边大拉子组的几种原始被子植物叶部印痕化石后， 最近又发现若
干种被子植物的生殖器官化石，本文报道的化石植物是Archimagnolia rostrato-stylosa gen．et sp．Nov.’Eucommioites orientalis sp．Nov. 分别与现生相关植物的生殖器官作了比较研究，并认为与木兰类和
杜仲类植物有亲缘。大拉子组为一套灰色粉砂岩、粉砂质泥岩和黑色油页岩互层所组成。 同层除保
存了较多的植物化石外，还有双壳类、叶肢介、介形类、昆虫和鱼类等。 该层位的地质时代为早白垩世的Aptian-Albian。
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| 关 键 词： | 生殖器官 被子植物 早白垩纪 |
Two Angiosperm Reproductive Organs from the Early Cretaceous of China |
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| Tao Jun-Rong,Zhang Chuan-Bo.Two Angiosperm Reproductive Organs from the Early Cretaceous of China[J].Journal of the Graduate School of the Chinese Academy of Sciences,1992,30(5):423-426. |
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| Authors: | Tao Jun-Rong Zhang Chuan-Bo |
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| Abstract: | Two fossil reproductive organs of early angiosperms were collected
from the Yanji Basin, Jilin Province of China. The assemblage of fossil plants
consist mainly of pteridophytes, gymnosperms and a few angiospoermms. The present
paper only reports the two reproductive organs of angiosperms. They are
Archimagnolia rostrato-stylosa gen.et sp. nov., Eucommioites orientalis sp.nov. The
first is a slightly elongated floral axis(receptacle), with about 20 carpels
helically arranged. The carpels are free from each other and attenuated into a
beak-like structure at the apex, with the base inserted into the receptacle. A com-
parison with living plants indicated its close relationship with some members of
the Magnoliaceae. The second is a samara, similar to a fruit of the genus
Eucommia, narrow-oblong, 2-lobed at the apex with the lobes stigmatic on theinner side. The seed is situated at the middle of fruit, oblong in shape. |
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| Keywords: | Reproductive organs Angiosperm Early Cretaceous |
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