Diminutive trace fossils in the Chengjiang Lagerstätte
Diminutive trace fossils in the Chengjiang Lagerstätte
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DOI：
10.1111/j.1365-3121.2007.00765.x
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发表时间：
2007-12
期刊：
影响因子：
2.4
通讯作者：
Xi-guang Zhang;J. Bergström;R. Bromley;X. Hou
中科院分区：
文献类型：
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作者：
Xi-guang Zhang;J. Bergström;R. Bromley;X. Hou
这里描述的微小遗迹化石与澄江动物的某些柔韧的甲壳或骨骼有关，保存得很好。埋藏学证据表明，这些痕迹是在原地形成的。这种特殊的保存表明，一些亲缘关系不确定的两侧动物似乎一直活跃在埋藏地点，构成了寒武纪海洋生物群落的一个重要群体。这可能是与寒武纪化石Lagerstätten的古生态学和特殊保存密切相关的一个基本特征。这种毫米大小的遗迹化石的罕见保存通过应用遗迹化石证据对最初的底栖两侧动物的时间提出了进一步的质疑。
Diminutive trace fossils described here have been well preserved in connection with certain pliable carapaces or skeletons of the Chengjiang animals. Taphonomic evidence suggests that these traces were formed in situ. The peculiar preservation indicates that some bilaterians of uncertain affinities seem to have been active at the burial site, constituting an important group of the hidden majority of Cambrian marine community. This may be an essential feature closely associated with the palaeoecology and exceptional preservation of the Cambrian fossil Lagerstätten. The rare preservation of such millimetre‐sized trace fossils raises further doubts about the timing of the initial benthic bilaterians by applying trace fossil evidence.