Paleoethologic interpretation of complex Thalassinoides in shallow-marine limestones, Lower Ordovician, Southern Sweden

被引：95
|
作者：
Ekdale, AA
Bromley, RG
机构：
[1] Univ Utah, Dept Geol & Geophys, Salt Lake City, UT 84112 USA
[2] Inst Geol, DK-1350 Copenhagen K, Denmark
来源：
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY | 2003年 / 192卷 / 1-4期
关键词：
burrows; complex trace fossils; limestone; Ordovician; Sweden; Thalassinoides;
D O I：
10.1016/S0031-0182(02)00686-7
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
Lower Ordovician Thalassinoides (T. bacae isp. nov.) from Oland, Sweden, is characterized by irregularly anastomosing, horizontal tunnel mazes with highly variable branching angles, accompanied by numerous closely spaced, short, vertical shafts that must have provided a large number of burrow openings to the sea floor. These complex trace fossils appear to be agrichnial burrow systems that represent chemosymbiotic feeding behavior by infaunal animals. They occur profusely in thin-bedded fossiliferous, lime mudstone and wackestone that were deposited on a shallow-marine, carbonate platform. (C) 2002 Elsevier Science B.V. All rights reserved.
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收藏
页码：221 / 227
页数：7
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