KMS Nanjing Institute of Geology and Palaeonotology,CAS
Late Cretaceous follicular fruits from southern Sweden with systematic affinities to early diverging eudicots | |
Leng, Q (冷琴); Schonenberger, J; Friis, EM | |
2005-08-01 | |
发表期刊 | BOTANICAL JOURNAL OF THE LINNEAN SOCIETY |
ISSN | 0024-4074 |
卷号 | 148期号:4页码:377-407 |
摘要 | Eight new species in seven new genera of follicular fruits are described from the Late Cretaceous of southern Sweden. They are Agapitocarpus emisxus, Chontrocarpus pachytoichus, Maiandrocarpus moirasmenus, Malliocarpus batrachoides, Mitocarpus elegans, Xylocarpus rhitidoides, Zeugarocarpus adroagathus and Z. leptoagathus. The fossil follicles are borne along infructescence axes or more commonly occur as isolated, dispersed fruits. Three genera, Maiandrocarpus, Mitocarpus and Zeugarocarpus, have follicles in distinct pairs borne spirally on an infructescence axis. Each follicle of a pair faces the axis with its ventral slit, which strongly indicates that the paired follicles were derived from two separate, monocarpellate flowers rather than from a single, bicarpellate flower. One genus (Malliocarpus) has follicles borne individually in the infructescence and three others (Agapitocarpus, Chontrocarpus and Xylocarpus) are known only as dispersed follicles. The paired follicles share many features with most of the dispersed follicles, including a sessile stigmatic area, a three-layered simple follicle wall, a simple vascular system composed of one dorsal and two lateral bundles, as well as a marginal-linear placentation bearing several anatropous ovules. Accordingly they are thought to belong to the same complex of taxa. The general structure of the fossils and comparison with modern angiosperms suggest that the fossils might represent an extinct lineage within or close to basal eudicots and many characters are shared with members of extant Proteaceae. (c) 2005 The Linnean Society of London. |
关键词 | Agapitocarpus Basal Eudicots Chontrocarpus Follicles Fossil Angiosperms Maiandrocarpus Malliocarpus Mitocarpus Proteaceae Xylocarpus Zeugarocarpus |
语种 | 英语 |
关键词[WOS] | Morphological Phylogenetic Analysis ; Basal Angiosperms ; Reproductive Structure ; Gynoecium Diversity ; Floral Structures ; Character States ; Flowering Plants ; Gen-nov ; Proteaceae ; Chloranthaceae |
WOS研究方向 | Plant Sciences |
WOS类目 | Plant Sciences |
WOS记录号 | WOS:000231188200001 |
出版者 | BLACKWELL PUBLISHING |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/678 |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Friis, EM |
作者单位 | 1.Swedish Museum Nat Hist, Dept Palaeobot, SE-10405 Stockholm, Sweden 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 3.State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 4.Stockholm Univ, Dept Bot, SE-10691 Stockholm, Sweden |
推荐引用方式 GB/T 7714 | Leng, Q ,Schonenberger, J,Friis, EM. Late Cretaceous follicular fruits from southern Sweden with systematic affinities to early diverging eudicots[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2005,148(4):377-407. |
APA | Leng, Q ,Schonenberger, J,&Friis, EM.(2005).Late Cretaceous follicular fruits from southern Sweden with systematic affinities to early diverging eudicots.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,148(4),377-407. |
MLA | Leng, Q ,et al."Late Cretaceous follicular fruits from southern Sweden with systematic affinities to early diverging eudicots".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 148.4(2005):377-407. |
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