Does trace fossil size correspond with burrower population density? An example from the modern counterpart of the trace fossil Bichordites

Does trace fossil size correspond with burrower population density? An example from the modern counterpart of the trace fossil Bichordites
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遗迹化石的大小与穴居动物的种群密度相对应吗?

DOI:
10.1016/j.palaeo.2020.109946
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发表时间:
2020
期刊:
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子:
--
通讯作者:
Sassa Shinji
Sassa Shinji
中科院分区:
--
文献类型:
--
作者:
Seike Koji;Shirai Kotaro;Kubota Kaoru;Ota Yuki;Sassa Shinji

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痕迹化石Bichordites出现作为一个层内洞穴,并出现在浅海沉积。它的现代对应物是在浅海地区发现的匙形海胆心脏海胆产生的洞穴。在日本东北部沿海的现代潮下带桑迪沉积物中研究了洞穴大小与示踪剂种群密度之间的关系。洞穴的大小随着人口密度的增加而减少,这表明在Bichordite的痕迹化石的大小可以作为一个代理,以量化tracemaker人口密度在痕迹形成的时候。然而,控制洞穴大小的因素尚不清楚,需要进一步调查。
The trace fossilBichorditesappears as an intrastratal burrow and occurs in shallow-marine deposits. Its modern counterpart is the burrow produced by the spatangoid echinoidEchinocardium cordatum, found in shallow-marine regions.The relationship between burrow size and tracemaker population density was studied in the modern, subtidal, sandy deposits of a ria coast in the northeastern Japan. Burrow size decreases with increasing population density in the modern counterpart, suggesting that trace fossil size inBichorditescan be used as a proxy to quantify tracemaker population density at the time of trace formation. However, the factors that control burrow size are unclear and warrant further investigation.
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发表时间: 1990
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