美国西部犹他州东部上三叠统秦乐群中第二次发现龙属Atreipus

IF 0.8 4区地球科学 Q4 PALEONTOLOGY

Ichnos-An International Journal for Plant and Animal Traces Pub Date : 2020-04-02 DOI:10.1080/10420940.2019.1612392

J. Foster, M. Lockley

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引用次数: 1

摘要

摘要在美国犹他州摩阿布北部的Chinle群中发现了一条新足迹，归属于在北美东部较为常见但在北美西部晚三叠世非常罕见的一种名为“Newark超级群”(Newark Supergroup)的鱼属Atreipus。这是该属在Chinle群中的第二份报告。在北美西部晚三叠世的骨骼材料中，恐龙类群相对丰富，但在同一单位的足迹证据中，属于恐龙的鱼类群占主导地位。阿特里普斯的罕见性目前在该地区是一种反常现象。

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Second occurrence of the dinosauriform ichnogenus Atreipus in the western United States, Upper Triassic Chinle Group of Eastern Utah

Abstract A newly discovered track in the Chinle Group north of Moab, Utah, is attributable to the ichnogenus Atreipus, an ichnotaxon that is relatively common in eastern North America (Newark Supergroup) but very rare in the Late Triassic of the western part of the continent. This is only the second report of the genus from the Chinle Group. Atreipus has been attributed to a silesaurid dinosauriform, and dinosauriform taxa are relatively abundant by skeletal material in the Late Triassic of western North America, but track evidence in the same units is dominated by ichnotaxa attributed to dinosaurs. The rarity of Atreipus is currently an anomaly in the region.

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来源期刊

Ichnos-An International Journal for Plant and Animal Traces PALEONTOLOGY-

CiteScore

2.50

自引率

12.50%

发文量

审稿时长

>12 weeks

期刊介绍： The foremost aim of Ichnos is to promote excellence in ichnologic research. Primary emphases center upon the ethologic and ecologic significance of tracemaking organisms; organism-substrate interrelationships; and the role of biogenic processes in environmental reconstruction, sediment dynamics, sequence or event stratigraphy, biogeochemistry, and sedimentary diagenesis. Each contribution rests upon a firm taxonomic foundation, although papers dealing solely with systematics and nomenclature may have less priority than those dealing with conceptual and interpretive aspects of ichnology. Contributions from biologists and geologists are equally welcome. The format for Ichnos is designed to accommodate several types of manuscripts, including Research Articles (comprehensive articles dealing with original, fundamental research in ichnology), and Short Communications (short, succinct papers treating certain aspects of the history of ichnology, book reviews, news and notes, or invited comments dealing with current or contentious issues). The large page size and two-column format lend flexibility to the design of tables and illustrations. Thorough but timely reviews and rapid publication of manuscripts are integral parts of the process.