再论三叶虫Megapalaeolenus Chang,1966属的无效地位  

FURTHER DISCUSSION ON THE INVALIDITY OF MEGAPALEOLENUS CHANG,1966

作　　者：林天瑞[1] 彭善池[2] 

机构地区：[1]南京大学地球科学与工程学院地球科学系,南京210093 [2]现代古生物学和地层学国家重点开放实验室,中国科学院南京地质古生物研究所,南京210008

出　　处：《古生物学报》2009年第4期695-700,共6页Acta Palaeontologica Sinica

摘　　要：作者2004年根据保存于法国的模式标本和产自我国三峡地区的新材料以及对以往所发现的化石材料的研究,认为MegapalaeolenusChang,1966一属不能成立,是PalaeolenusMansuy,1912的晚出异名;其模式种Palaeolenus depratiMansuy,1912也是Palaeolenus的模式种Palaeolenus douvillei,Mansuy,1912的晚出异名。提出属名MegapalaeolenusChang和种名Palaeolenus depratiMansuy均应废弃的结论。最近,罗惠麟等发表了一系列采自模式标本产地附近的标本,为笔者的上述结论提供了更有力的证据。根据这些新材料,笔者不同意罗惠麟等认为Megapalaeolenus继续有效、Palaeolenus deprati能够成立的观点。Based on examination of the monotype of Palaeolenusdeprati Mansuy, 1912 （a species designated by Chang （Zhang, 1966） as the type species of his new genus Megapalaeolenus Chang, 1966） and our palaeolenid material from western Hubei, the authors （2004） concluded that Palaeolenus deprati is a junior synonym of the type species of Palaeolenus Mansuy, 1912, Palaeolenus douvillei Mansuy, 1912, and that the genus Megapalaeolenus should be regarded as a junior synonym of Palaeolenus, Recently, Luo et al. （2007, 2008） reported rich material of palaeolenid trilobites from localities close to the type localities of both P. douvillei and P. departi in eastern Yunnan. The new material is important not only because it comes from the type area of Palaeolenus but also provides further evidences to confirm our earlier interpretation. The new material demonstrates that the morphological characters of ＂Megapalaeolenus＂ and ＂M. deprati＂ are almost indistinguishable in various aspects from Palaeolenus and P. douvillei respectively and, therefore, it is no longer appropriate to treat Megapalaeolenus and Palaeolenus deprati as valid taxa as suggested by Luoetal. （2007, 2008）.

关 键 词：晚出异名 Palaeolenus Megapalaeolenus 三叶虫 寒武纪 

分 类 号：Q915[天文地球—古生物学与地层学]