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Unusual preservation of an Ordovician (Floian) arthropod from Peary Land, North Greenland (Laurentia)
PalZ ( IF 1.9 ) Pub Date : 2019-07-31 , DOI: 10.1007/s12542-019-00481-y
John S. Peel , Sebastian Willman , Stig A. Schack Pedersen

Preservation of a fragment of an arthropod from starved trough sediments of the Bøggild Fjord Formation (Ordovician, Floian) of Johannes V. Jensen Land in north Peary Land, North Greenland, recalls that of the lower Cambrian Sirius Passet Lagerstätte of extreme north-west Peary Land and may suggest a second locality for exceptional preservation in North Greenland. A prominent petaloid pattern on the tergopleurae reflects impression onto the internal mould of terrace lines from the cuticle exterior. The arthropod is associated with poorly preserved sponges and a depauperate assemblage of organic-walled microfossils. It is tentatively compared to Mollisonia, originally described from the Burgess Shale Lagerstätte (middle Cambrian, Miaolingian Series) of Canada.

中文翻译:

来自北格陵兰(Laurentia)Peary Land的Ordovician(Floian)节肢动物的异常保存

北格陵兰北部Peary Land的Johannes V.Jensen Land的Bøggild峡湾组(奥陶纪,弗洛伊安)的饥饿谷沉积物中节肢动物的片段保存起来,让人想起了西北西北Peary的下寒武纪天狼星PassetLagerstätte土地,并建议在格陵兰北部进行特殊保护的第二地点。角膜胸膜上突出的花瓣状图案将表皮外部的梯田线条的内部模样反映出来。节肢动物与保存不良的海绵和有机壁微化石的退化组合有关。暂时将其与加拿大的Burgess页岩Lagerstätte(中寒武统,苗岭阶系列)描述的Mollisonia进行比较。
更新日期:2019-07-31
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