KMS Nanjing Institute of Geology and Palaeonotology,CAS
REDESCRIPTION OF HEXACONULARIA HE AND YANG, 1986 (LOWER CAMBRIAN, SOUTH CHINA): IMPLICATIONS FOR THE AFFINITIES OF CONULARIID-LIKE SMALL SHELLY FOSSILS | |
Van Iten, Heyo1; Maoyan, Zhu (朱茂炎)2![]() ![]() | |
2010 | |
发表期刊 | PALAEONTOLOGY
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ISSN | 0031-0239 |
卷号 | 53页码:191-199 |
摘要 | Hexaconularia, a Lower Cambrian small shelly fossil (SSF) that has been allied with conulariids and scyphozoan cnidarians, is redescribed and refigured. A salient feature of this monospecific genus is the presence of distinct apical and abapical regions. The apical region probably represents an embryonic shell that apparently lacked a basal attachment structure. Comparisons of this feature with the apical end of the smallest known conulariids and with conulariids terminating in an apical wall (schott) reveal substantial differences in structure and ornamentation. Differences in apical anatomy between conulariids and Arthrochites, possibly the nearest SSF relative of Hexaconularia, are also apparent. Comparisons of Hexaconularia with Punctatus, an SSF taxon showing distinct apical and abapical regions in both posthatching specimens and prehatching embryos, suggest that the early development of Hexaconularia was direct. These results have important implications for hypotheses of a conulariid/scyphozoan affinity for Hexaconularia and its possible SSF relatives, and they suggest that Hexaconularia-bearing strata may yield prehatching embryos of this genus. |
关键词 | Small Shelly Fossils Lower Cambrian Conulariids Scyphozoans Hexaconularia Punctatus |
DOI | 10.1111/j.1475-4983.2009.00925.x |
语种 | 英语 |
关键词[WOS] | Sphenothallus-hall ; Lesser Himalaya ; Morphology ; Boundary ; Patterns ; Embryos ; Russia |
资助项目 | Hanover College Faculty Development Committee (HVI) ; National Natural Science Foundation of China[40725005] ; National Natural Science Foundation of China[40572006] ; National Natural Science Foundation of China[40872012] ; Ministry of Science and Technology of China[2006CB806401] ; State Key Laboratory of Palaeobiology and Stratigraphy (China) |
WOS研究方向 | Paleontology |
WOS类目 | Paleontology |
WOS记录号 | WOS:000273688000009 |
项目资助者 | Hanover College Faculty Development Committee (HVI) ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; State Key Laboratory of Palaeobiology and Stratigraphy (China) |
出版者 | WILEY-BLACKWELL PUBLISHING, INC |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/388 |
专题 | 中国科学院南京地质古生物研究所 其他 |
通讯作者 | Van Iten, Heyo |
作者单位 | 1.Hanover Coll, Dept Geol, Hanover, IN 47243 USA 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, LPS, Nanjing 210008, Peoples R China |
推荐引用方式 GB/T 7714 | Van Iten, Heyo,Maoyan, Zhu ,Li, Guoxiang . REDESCRIPTION OF HEXACONULARIA HE AND YANG, 1986 (LOWER CAMBRIAN, SOUTH CHINA): IMPLICATIONS FOR THE AFFINITIES OF CONULARIID-LIKE SMALL SHELLY FOSSILS[J]. PALAEONTOLOGY,2010,53:191-199. |
APA | Van Iten, Heyo,Maoyan, Zhu ,&Li, Guoxiang .(2010).REDESCRIPTION OF HEXACONULARIA HE AND YANG, 1986 (LOWER CAMBRIAN, SOUTH CHINA): IMPLICATIONS FOR THE AFFINITIES OF CONULARIID-LIKE SMALL SHELLY FOSSILS.PALAEONTOLOGY,53,191-199. |
MLA | Van Iten, Heyo,et al."REDESCRIPTION OF HEXACONULARIA HE AND YANG, 1986 (LOWER CAMBRIAN, SOUTH CHINA): IMPLICATIONS FOR THE AFFINITIES OF CONULARIID-LIKE SMALL SHELLY FOSSILS".PALAEONTOLOGY 53(2010):191-199. |
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