不是第一只水蛭：威斯康星州志留纪早期的一种不寻常的蠕虫

IF 1.3 4区地球科学 Q3 PALEONTOLOGY

Journal of Paleontology Pub Date : 2023-09-04 DOI:10.1017/jpa.2023.47

S. Braddy, K. C. Gass, Michael Tessler

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引用次数: 1

摘要

一种不寻常的蠕虫，以前被解释为最早的水蛭，来自威斯康辛州的志留纪早期（Llandovery，Telychian）Brandon Bridge Formation Lagerstätte（Waukesha Biota）（~437 Ma）。由于缺乏保存的内脏，它长约16厘米，宽8.2毫米，有约250个环，一端有圆形结构，在这里被解释为蜕皮的断裂端。因此，它被称为环神经胶质瘤。

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Not the first leech: An unusual worm from the early Silurian of Wisconsin

An unusual worm, previously interpreted as the earliest leech, is described from the early Silurian (Llandovery, Telychian) Brandon Bridge Formation Lagerstätte (Waukesha Biota) of Wisconsin (~437 Ma). Lacking preserved internal organs, it is up to ~16 cm long, 8.2 mm wide, with ~250 annulations and a circular structure at one end, interpreted here as the broken end of a molt. It is therefore referred to Cycloneuralia incertae sedis.

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来源期刊

Journal of Paleontology 地学-古生物学

CiteScore

2.80

自引率

7.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Paleontology publishes original articles and notes on the systematics, phylogeny, paleoecology, paleogeography, and evolution of fossil organisms. It emphasizes specimen-based research and features high quality illustrations. All taxonomic groups are treated, including invertebrates, microfossils, plants, vertebrates, and ichnofossils.