北美志留纪伯蒂群拉格斯塔滕以极龙类为主的一种水螅虫

IF 1.3 4区地球科学 Q3 PALEONTOLOGY

Journal of Paleontology Pub Date : 2023-12-01 DOI:10.1017/jpa.2023.62

Evelyn Larson, Derek E. G. Briggs

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引用次数: 0

摘要

头状水螅动物化石需要特殊的保存条件。在这里，我们描述了Bertratis ciurcae新属，新种，来自安大略省南部和纽约州北部志留系(Pridoli)，在那里它与各种各样的eurypterids组合在一起。只有浮子(气团)保存完好，以厚厚的碳质压缩形式存活下来。这个新分类群是报道过的最大的头状化石，宽度达到17厘米，也是古生代已知的第三个类似porpita的例子。这是著名的伯蒂群Lagerstätten生物群中罕见的远洋生物。UUID: http://zoobank.org/1eb789e3 - 67 - b4 - 4 - e46 - 9 - baf - 6320 d4b67d6c

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A hydrozoan from the eurypterid-dominated Silurian Bertie Group Lagerstätten of North America

Fossil capitate hydrozoans require exceptional conditions for preservation. Here we describe Bertratis ciurcae new genus, new species from the Silurian (Pridoli) of southern Ontario and upper New York State, where it occurs in association with a diverse assemblage of eurypterids. Only the float (pneumatophore) is well preserved, surviving as a thick carbonaceous compression. The new taxon is the largest fossil capitate reported, reaching a width of 17 cm, and the third Porpita-like example known from the Paleozoic. It was a rare pelagic component of the biota of the well-known Bertie Group Lagerstätten. UUID: http://zoobank.org/1eb789e3-67b4-4e46-9baf-6320d4b67d6c

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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.