KMS Nanjing Institute of Geology and Palaeonotology,CAS
Jurastrobus chenii gen. et sp nov., a cycadalean pollen cone connected with vegetative parts from Inner Mongolia, China | |
Wang Xin (王鑫); Li Nan; Cui Jinzhong | |
2006 | |
发表期刊 | PROGRESS IN NATURAL SCIENCE |
ISSN | 1002-0071 |
卷号 | 16页码:213-221 |
摘要 | Cycads used to be a dominant plant group during the Mesozoic. Many fossils of cycads or their allies have been documented, but most of them are foliages. Reproductive organs are scarce and mostly found detached from vegetative organs. Among cycad reproductive parts, ovulate cones are rather frequently seen in the fossil record, while pollen cones are rare. Here we report a cycadalean pollen cone connected with its vegetative parts from the lower Jurassic of Inner Mongolia, China. The pollen cone is situated on the apex of the stem and in the center of the leaf tuft. The pinnate leaves have lateral pinnae attached decurrently and almost perpendicularly to the rachis. The characters demonstrate a strong affinity to the extant cycads. This is the first record of cycadalean pollen cone with in situ pollen grain and organically connected with its vegetative parts, and therefore sheds new light on the morphological evolution of cycad plants. |
关键词 | Jurastrobus Cycad Pollen Cone Foliage Inner Mongolia |
语种 | 英语 |
关键词[WOS] | Zamiaceae ; Argentina ; Origin ; Cycads |
WOS研究方向 | Materials Science ; Science & Technology - Other Topics |
WOS类目 | Materials Science, Multidisciplinary ; Multidisciplinary Sciences |
WOS记录号 | WOS:000240034200018 |
出版者 | TAYLOR & FRANCIS LTD |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/578 |
专题 | 中国科学院南京地质古生物研究所 其他 |
通讯作者 | Wang Xin (王鑫) |
作者单位 | 1.Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Shenzhen Fairy Lake Bot Garden, Shenzhen 518004, Peoples R China 3.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China |
推荐引用方式 GB/T 7714 | Wang Xin ,Li Nan,Cui Jinzhong. Jurastrobus chenii gen. et sp nov., a cycadalean pollen cone connected with vegetative parts from Inner Mongolia, China[J]. PROGRESS IN NATURAL SCIENCE,2006,16:213-221. |
APA | Wang Xin ,Li Nan,&Cui Jinzhong.(2006).Jurastrobus chenii gen. et sp nov., a cycadalean pollen cone connected with vegetative parts from Inner Mongolia, China.PROGRESS IN NATURAL SCIENCE,16,213-221. |
MLA | Wang Xin ,et al."Jurastrobus chenii gen. et sp nov., a cycadalean pollen cone connected with vegetative parts from Inner Mongolia, China".PROGRESS IN NATURAL SCIENCE 16(2006):213-221. |
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