KMS Nanjing Institute of Geology and Palaeonotology,CAS
Late paleozoic evolution of the Caenogastropoda: Larval shell morphology and implications for the Permian/Triassic mass extinction event | |
Nutzel, A; Hua-Zhang, P (潘华璋) | |
2005-11-01 | |
发表期刊 | JOURNAL OF PALEONTOLOGY |
ISSN | 0022-3360 |
卷号 | 79期号:6页码:1175-1188 |
摘要 | Representatives of several genera of late Paleozoic Caenogastropoda have been studied based on exceptionally well-preserved material from the latest Permian of south China, the Pennsylvanian of the United States, and the Early Carboniferous of Australia. This material has well-preserved protoconchs which are relatively rare in Paleozoic gastropods. The morphology of the protoconch and especially that of planktotrophic larval shells gives crucial taxonomic and phylogenetic information. It helps to recognize convergence, which is common in Gastropoda. The larval shell morphology of the following taxa is discussed and illustrated: Platyzona (Goniasmatidae), Erwinispira n. gen. (Erwinispirinae n. subfam.), Propupaspira (Propupaspiridae), Soleniscus (Soleniscidae), Meekospiridae, and Chlorozyga (Imoglobidae). The new species Meekospira? solenisiciforma is described. The main diagnostic feature of the order Procaenogastropoda, a fluent protoconch/teleoconch transition, probably represents a preservational artifact. An abrupt transition indicating metamorphosis can be shown for several genera which have been assigned to the Procaenogastropoda. Therefore, the monophyly of the Procaenogastropoda is questioned, and the taxon is refuted. While the caenogastropods of latest Permian gastropod faunas are dominated by typical late Paleozoic genera and families, the Early Triassic is characterized by an almost complete faunal turnover of caenogastropod genera. |
语种 | 英语 |
关键词[WOS] | Gastropod Mollusks ; Classification ; Phylogeny ; Families |
WOS研究方向 | Paleontology |
WOS类目 | Paleontology |
WOS记录号 | WOS:000232727900011 |
出版者 | PALEONTOLOGICAL SOC INC |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/679 |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Nutzel, A |
作者单位 | 1.Univ Erlangen Nurnberg, Inst Palaontol, D-91054 Erlangen, Germany 2.Acad Sinica, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China |
推荐引用方式 GB/T 7714 | Nutzel, A,Hua-Zhang, P . Late paleozoic evolution of the Caenogastropoda: Larval shell morphology and implications for the Permian/Triassic mass extinction event[J]. JOURNAL OF PALEONTOLOGY,2005,79(6):1175-1188. |
APA | Nutzel, A,&Hua-Zhang, P .(2005).Late paleozoic evolution of the Caenogastropoda: Larval shell morphology and implications for the Permian/Triassic mass extinction event.JOURNAL OF PALEONTOLOGY,79(6),1175-1188. |
MLA | Nutzel, A,et al."Late paleozoic evolution of the Caenogastropoda: Larval shell morphology and implications for the Permian/Triassic mass extinction event".JOURNAL OF PALEONTOLOGY 79.6(2005):1175-1188. |
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