EVIDENCE FOR MONOPHYLY AND ARTHROPOD AFFINITY OF CAMBRIAN GIANT PREDATORS
EVIDENCE FOR MONOPHYLY AND ARTHROPOD AFFINITY OF CAMBRIAN GIANT PREDATORS
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DOI：
10.1126/science.264.5163.1304
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发表时间：
1994-05-27
期刊：
影响因子：
56.9
通讯作者：
ZHOU, GQ
中科院分区：
文献类型：
--
作者：
CHEN, JY;RAMSKOLD, L;ZHOU, GQ
中国早寒武世澄江动物群包括三种不同的异形线虫，这是一个全球分布、已灭绝的海洋类群，其中包括已知的最大的寒武纪动物。异形线虫是一种活跃的捕食者，它们的存在意味着一个复杂的生态系统在显生界最早的时候突然出现。完整的标本显示了几组仅与其他一些专门的寒武纪形式共享的字符。这一证据表明，异形吸虫、奥巴比尼亚和Kerygmachela形成了一个单系支系。某些特征表明了该支系的节肢动物亲缘关系，对于这一组，建议在节肢动物(超级)门内建立一个未命名的(亚门)级分类单元。
The Chinese Early Cambrian Chengjiang fauna includes three different anomalocaridids, a globally spread, extinct marine group including the largest known Cambrian animals. Anomalocaridids were active predators, and their presence implies that a complex ecosystem appeared abruptly in the earliest Phanerozoic. Complete specimens display several sets of characters shared only with some other exclusively Cambrian forms. This evidence indicates that anomalocaridids, Opabinia, and Kerygmachela form a monophyletic clade. Certain features indicate arthropod affinities of the clade, and for this group an unnamed (sub)phylum-level taxon within an arthropod (super)phylum is proposed.