一种由单一物种的浮游有孔虫外壳构建的深海粘性有孔虫管

IF 4.1 3区 地球科学 Q1 PALEONTOLOGY
P. Pearson, Iodp Expedition Shipboard ScientificParty
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引用次数: 3

摘要

摘要聚集有孔虫是海洋原生生物,在建造外壳时表现出明显的复杂行为,包括从环境中选择合适的沉积颗粒,在三维中操纵它们,并将它们精确地固定到位。在这里,我们展示了1466年管状有孔虫(有疑问被分配给Rhabdammina)复杂组织基础部分的横跨和以前未描述的例子 澳大利亚西北边缘水深m。该管由胶结良好的硅碎屑颗粒构成,这些颗粒形成了一个基质,数百个浮游有孔虫外壳以明显的螺旋带规则地分布在其中。这些贝壳属于一个单一的物种,即克拉基涡轮轮藻,它被选为排除所有其他生物碎屑的物种。大多数贝壳都是水平放置在母体中,脐侧向上。这种构建模式,与其他凝集测试的情况一样,似乎需要在胶结部位进行非凡的选择性试错过程,或者需要细胞内的主动感觉和决策系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A deep-sea agglutinated foraminifer tube constructed with planktonic foraminifer shells of a single species
Abstract. Agglutinated foraminifera are marine protists that show apparently complex behaviour in constructing their shells, involving selecting suitable sedimentary grains from their environment, manipulating them in three dimensions, and cementing them precisely into position. Here we illustrate a striking and previously undescribed example of complex organisation in fragments of a tube-like foraminifer (questionably assigned to Rhabdammina) from 1466 m water depth on the northwest Australian margin. The tube is constructed from well-cemented siliciclastic grains which form a matrix into which hundreds of planktonic foraminifer shells are regularly spaced in apparently helical bands. These shells are of a single species, Turborotalita clarkei, which has been selected to the exclusion of all other bioclasts. The majority of shells are set horizontally in the matrix with the umbilical side upward. This mode of construction, as is the case with other agglutinated tests, seems to require either an extraordinarily selective trial-and-error process at the site of cementation or an active sensory and decision-making system within the cell.
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来源期刊
Journal of Micropalaeontology
Journal of Micropalaeontology 生物-古生物学
CiteScore
4.30
自引率
5.00%
发文量
7
审稿时长
>12 weeks
期刊介绍: The Journal of Micropalaeontology (JM) is an established international journal covering all aspects of microfossils and their application to both applied studies and basic research. In particular we welcome submissions relating to microfossils and their application to palaeoceanography, palaeoclimatology, palaeobiology, evolution, taxonomy, environmental change and molecular phylogeny.
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