神秘的无聊隐藏在异质双壳类动物的铰链板

IF 1.2 4区地球科学 Q2 Earth and Planetary Sciences Bulletin of the Geological Society of Denmark Pub Date : 1999-01-30 DOI:10.37570/bgsd-1998-45-21

J. Martinell, R. Domènech, G. Bromley

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引用次数: 0

摘要

在异质双壳类的伞形下面，一个袋状的钻孔被蚀刻在相对的双壳类的两个铰链板上。从始新世到今天，钻孔是丰富的，发生在许多寄主物种中，似乎在世界范围内发生。该化石被命名为Umbichnus inopinatus 11 . igen。isp。追踪器的性质仍然未知。讨论了该结构是双壳类自身产生的溶解坑的可能性。

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Mysterious boring hidden within the hinge plates of heterodont bivalves

Well-hidden beneath the umbo ofheterodont bivalves, a sack-like boring is etched into the two hinge plates of the opposed valves. The boring is abundant, occurs in numerous host species, ranges from Eocene to today and appears to have worldwide occurrence. The trace fossil is named Umbichnus inopinatus nov. igen. et isp. The nature of the tracemaker remains unknown. The possibility that the structure is a dissolution pit produced by the bivalve itself is discussed.

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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.