Some New Late Mississippian Trilobites from Oklahoma and Arkansas

IF 0.6 4区地球科学 Q4 PALEONTOLOGY

Annals of Carnegie Museum Pub Date : 2017-04-21 DOI:10.2992/007.084.0203

D. Brezinski

引用次数: 0

Abstract

ABSTRACT A new late Mississippian trilobite species, Kaskia pitkinensis, new species, is described from the Pitkin Formation of Arkansas. Kaskia pitkinensis, recovered from early Serpukhovian strata, is the youngest species of the Kaskia clade known in the United States. Kaskia c.f. K. wilsoni (Walter, 1924) also is illustrated. Cyrtoproetus kerhini, new species, from the upper Fayetteville Formation of Arkansas is also described. Richterella hindesvillensis Hessler, 1965, from the Hindesville Limestone of Oklahoma, is herein reassigned to the genus Cyrtoproetus Reed, 1943. Cyrtoproetus kerhini, new species, and C. hindesvillensis (Hessler, 1965) are the first known occurrences of Cyrtoproetus in North America.

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俄克拉何马州和阿肯色州的新密西西比晚期三叶虫

摘要描述了阿肯色州皮特金组晚密西西比三叶虫新种Kaskia pitkinensis。从早期Serpukhovian地层中发现的Kaskia pitkinensis是美国已知的Kaskia分支中最年轻的物种。Kaskia c.f.k. wilsoni (Walter, 1924)也有插图。本文还描述了阿肯色州费耶特维尔组上部的克希尼石龙(Cyrtoproetus kerhini)新种。赫斯勒Richterella hindesvillensis Hessler, 1965年，来自俄克拉何马州的Hindesville石灰石，在此被重新分配到Cyrtoproetus Reed属，1943年。kerhini Cyrtoproetus、新种和C. hindesvillensis (Hessler, 1965)是在北美首次发现的Cyrtoproetus。

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来源期刊

Annals of Carnegie Museum 综合性期刊-动物学

CiteScore

2.50

自引率

18.20%

发文量

审稿时长

>12 weeks

期刊介绍： Annals of Carnegie Museum is a quarterly journal that publishes peer-reviewed short and medium-length original scientific contributions in organismal biology, earth sciences, and anthropology, in 40 by 52.5 pica format (168 by 220 mm or 6-5/8 by 8-5/8 inches). Subject matter must be relevant to Carnegie Museum of Natural History scientific sections or Powdermill Nature Reserve (PNR), preferably with connection to the Carnegie collection and/or personnel. Carnegie Museum staff and research associates receive publication priority, but others are encouraged to submit papers, especially those manuscripts explicitly based on the Carnegie collection.