穿过海绵和时间——丹麦Kerteminde Marl(中古新世)的Koptichnus rasmussenae(化石)新记录

IF 1.2 4区地球科学 Q2 Earth and Planetary Sciences

Bulletin of the Geological Society of Denmark Pub Date : 2022-08-24 DOI:10.37570/bgsd-2022-70-09

Lothar H. Vallon, A. Rindsberg

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引用次数: 1

摘要

最近在丹麦白垩纪发现了一种新的痕迹化石——rasmussenae Koptichnus。这个洞穴布满了厚厚的长方体，这些长方体是追踪器从硅质海绵上切下来的。在Gundstrup砾石坑(丹麦Fyn)的一块松散巨石中发现的一个新发现的标本，将这个鱼分类群的地层范围从以前已知的Coniacian扩展到古新世中期，并证明了这种独特的收获和塑造建筑材料的行为在K-Pg灭绝事件中幸存下来。

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Cutting through sponge and time – a new record of Koptichnus rasmussenae (trace fossil) from the Kerteminde Marl (middle Paleocene), Denmark

A new trace fossil, Koptichnus rasmussenae, was recently reported from the Cretaceous of Denmark. This burrow is thickly lined with cuboids that the tracemaker cut from siliceous sponges. A newly discovered specimen from the lower Selandian Kerteminde Marl, found in a loose boulder in the Gundstrup gravel pit (Fyn, Denmark), extends the stratigraphical range of this ichnotaxon from the previously known Coniacian to the middle Paleocene and demonstrates that this distinct behaviour of harvesting and shaping building material survived the K-Pg extinction event.

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来源期刊

Bulletin of the Geological Society of Denmark GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

2.80

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： The Bulletin publishes contributions of international interest in all fields of geological sciences on results of new work on material from Denmark, the Faroes and Greenland. Contributions based on other material may also be submitted to the Bulletin if the subject is of relevance for the geology of the area of primary interest.