Invertebrate trace fossils from the Pennsylvanian Rhode Island Formation of Massachusetts, USA

IF 1.2 4区地球科学 Q2 GEOLOGY

Atlantic Geology Pub Date : 2017-04-27 DOI:10.4138/ATLGEOL.2017.007

P. Getty, Robert G. Sproule, M. Stimson, P. Lyons

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引用次数: 16

Abstract

A large open-pit quarry in Plainville, Massachusetts, has yielded fourteen invertebrate ichnotaxa from the Pennsylvanian Rhode Island Formation of the Narragansett Basin. These traces include Cochlichnus anguineus , Diplichnites cuithensis, Diplichnites gouldi, Diplopodichnus biformis, Gordia carickensis, Helminthoidichites tenuis, Lockeia isp., Mitchellichnus cf. ferrydenensis, Planolites montanus, Siskemia elegans, Stiallia pilosa, Stiaria intermedia, Tonganoxichnus buildexensis and Narragansettichnus fortunatus new ichnogenus and ichnospecies. Specimens were collected from talus and the depositional environment has been inferred from sedimentary structures. The sediment - ology of the slabs on which the traces were preserved indicates that the rocks represent lake-margin and shallowlacustrine sedimentary facies. Distinct ichnofacies occur in the different sedimentary environments. The lake-margin traces belong to the Scoyenia ichnofacies and include traces of apterygote insects, arthropleurid myriapods, bivalved arthropods and vermiform animals in association with tracks of temnospondyl amphibians and diapsid reptiles. The lacustrine traces include arthropod trackways, fish trails and a newly named body imprint possibly produced by an aquatic mayfly larva. These shallow lacustrine traces are attributed to the Mermia ichnofacies.

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美国马萨诸塞州宾夕法尼亚州罗德岛组无脊椎动物化石

马萨诸塞州普兰维尔的一个大型露天采石场从纳拉甘塞特盆地的宾夕法尼亚州罗德岛组中产下了14只无脊椎动物。这些痕迹包括血唇地衣、cuithensis Diplichnites、gouldi Diplichnetes、双足双足双趾双趾双足双肢双趾双肢双肢双足双棘双肢双壳双肢双棘双足双壳双足双脊双肢双脊双足双双足双孢双足双齿双肢双孢双壳双双足单肢双肢单肢双壳。，Mitchellichnus cf.ferrydenensis，Planolites montanus，Siskemia elegans，Stiallia pilosa，Stiaria intermediata，Tonganoxichnus buildexensis和Narragansettichnus fortunatus新属和属。标本是从距骨中采集的，沉积环境是从沉积结构中推断出来的。保留痕迹的板块的沉积学表明，这些岩石代表湖缘和浅湖沉积相。不同的沉积环境中存在着不同的遗迹相。湖缘痕迹属于Scoyenia遗迹相，包括与temnospondyl两栖动物和底辟爬行动物的痕迹有关的附体昆虫、肉豆蔻关节节肢动物、双壳节肢动物和蠕虫动物的痕迹。湖泊痕迹包括节肢动物的踪迹、鱼类的踪迹和一个新命名的身体印记，可能是由水生蜉蝣幼虫产生的。这些浅湖相痕迹属于Mermia遗迹相。

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来源期刊

Atlantic Geology GEOLOGY-

CiteScore

2.10

自引率

18.80%

发文量

审稿时长

>12 weeks

期刊介绍： Atlantic Geology (originally Maritime Sediments, subsequently Maritime Sediments and Atlantic Geology) covers all aspects of the geology of the North Atlantic region. It publishes papers, notes, and discussions on original research and review papers, where appropriate to the regional geology.