Primitive deuterostomes from the Chengjiang Lagerstatte (Lower Cambrian, China)
Primitive deuterostomes from the Chengjiang Lagerstatte (Lower Cambrian, China)
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DOI：
10.1038/35106514
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发表时间：
2001-11-22
期刊：
影响因子：
64.8
通讯作者：
Liu, JN
中科院分区：
文献类型：
--
作者：
Shu, DG;Morris, SC;Liu, JN
寒武纪化石Lagerstatten（特殊的化石保存地点），如澄江（下寒武统）和伯吉斯页岩（中寒武统），为我们提供了了解寒武纪“爆发”的最佳窗口。这种动物群在大约40个地方被发现，并产生了一系列广泛不同的分类群，从栉水母到无颌鱼。最近在中国南部昆明附近的一系列遗址中发现的澄江化石-Lagerstatte，发现了几种新的类型。结合先前描述的材料，这些提供了一个新的后生动物群的证据，vetulicolians。几个功能，特别是一系列的鳃缝，表明这组可以抛出光的早期阶段的后口动物多样化。
Cambrian fossil-Lagerstatten (sites of exceptional fossil preservation), such as those from Chengjiang (Lower Cambrian) and the Burgess Shale (Middle Cambrian), provide our best window into the Cambrian 'explosion'. Such faunas are known from about 40 localities, and have yielded a widely disparate series of taxa ranging from ctenophores to agnathan fish. Recent excavations of the Chengjiang fossil-Lagerstatte, known from a series of sites near Kunming in Yunnan, south China, have resulted in the discovery of several new forms. In conjunction with material described earlier, these provide evidence for a new group of metazoans, the vetulicolians. Several features, notably a series of gill slits, suggest that this group can throw light on an early stage of deuterostome diversification.