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

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

引用次数: 1

Abstract

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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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

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。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.