The burrow dwelling behavior and locomotion of palaeoscolecidian worms: New fossil evidence from the Cambrian Chengjiang fauna
The burrow dwelling behavior and locomotion of palaeoscolecidian worms: New fossil evidence from the Cambrian Chengjiang fauna
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古头蠕虫的穴居行为和运动：来自寒武纪澄江动物群的新化石证据
DOI：
10.1016/j.palaeo.2013.11.004
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发表时间：
2014-03-15
影响因子：
3
通讯作者：
Zhao, Fangchen
中科院分区：
文献类型：
--
作者：
Huang, Diying;Chen, Junyuan;Zhao, Fangchen
古臭蠕虫是古生代浅海生物群落中的重要组成部分，但其生活习性至今仍知之甚少。本文根据采自下寒武统茅田山页岩中保存完好的晋宁环壳虫（Cricocosmia jinningensis）和马坊环壳虫（Mafangscolex sinensis）标本，提出了古环壳蠕虫穴居行为的证据。晋宁姬小蜂生活在细长的洞穴中，洞穴呈圆柱形或膨大的囊状，而晋宁姬小蜂生活在细长的洞穴中。中华绒螯蟹生活在细长的管状洞穴中。洞穴的壁与周围的沉积物有一个尖锐的边界，这可能是由蠕虫本身巩固的，它类似于最近的priapulid蠕虫马卡比。证明了M. sinensis在洞穴中的爬行行为与C. jinningensis的两列侧板。以往报道的猫天山天牛的衬穴实际上是由晋宁猫天山天牛和猫天山天牛所造成的。sinensis。(C)2013爱思唯尔有限公司版权所有。
Palaeoscolecidian worms are abundant components in Paleozoic shallow marine communities; however, their life habits remain poorly known. Here we present evidence of burrow dwelling behavior of palaeoscolecidian worms based on well-preserved specimens of Cricocosmia jinningensis and Mafangscolex sinensis from the lower Cambrian Maotianshan Shale. C.jinningensis was found living within elongate burrows, either of cylindrical or more rarely of swollen sac-like shape, while M. sinensis lived in elongate and slender tube-like burrows. The wall of the burrow has a sharp boundary from the surrounding sediment, which may have been consolidated by the worm itself and it resembles the recent priapulid worm Maccabeus. It is demonstrated that M. sinensis makes a snake-twisting movement in its burrow that differs from crawling behavior of C. jinningensis by the use of two rows of lateral plates. The lined burrows of Maotianshania cylindrica previously reported are in fact made by C jinningensis and M. sinensis. (C) 2013 Elsevier B.V. All rights reserved.