Evaluation of a new character for the phylogenetic analysis of Ostracoda (Crustacea): the podocopan maxillular branchial plate |
| |
| Authors: | Robin J Smith Takahiro Kamiya David J Horne Akira Tsukagoshi |
| |
| Institution: | aDepartment of Earth Sciences, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan;bDepartment of Zoology, The Natural History Museum, Cromwell Road, London SW7 5BD, UK;cDepartment of Biology and Earthsciences, Shizuoka University, Oya 836, Shizuoka 422-8529, Japan;dDepartment of Geography, Queen Mary, University of London, Mile End Road, London E1 4NS, UK |
| |
| Abstract: | A data set of the number of setae on the maxillular branchial plate of podocopan ostracods was compiled from published drawings and our own dissections. A total of 168 species in six superfamilies were covered, with the Cytheroidea, Cypridoidea and Bairdioidea being best represented. The number of setae is shown to be independent of the size of the ostracod and the environment in which the species lives, but to have phylogenetic significance at superfamily level. Ontogenetic data suggest that the low number of branchial plate setae in many cytheroidean families is a paedomorphic phenomenon. |
| |
| Keywords: | Bairdioidea Cypridoidea Cytheroidea Paedomorphism Maxillula |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
