巴西阿克里盆地Solimões组（上中新世）的腹足类

IF 0.7 4区地球科学 Q4 PALEONTOLOGY

Revista Brasileira De Paleontologia Pub Date : 2021-09-26 DOI:10.4072/rbp.2021.3.03

Felipe Nascimento Sousa, R. C. Marques, Victor Rodrigues Ribeiro, G. Gaia, E. Guilherme, Andréa Maciente, J. P. Souza-Filho, A. S. Hsiou, R. P. Ghilardi

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引用次数: 1

摘要

本文介绍了巴西阿克里盆地Solimões组中新世腹足类的分类学综述，这些腹足类来自于在Oriente的Cachoeira do Bandeira采集的标本和一个名为Spot 04的露头。为这些矿床确定了三种安瓿菌（Pomacea maculata、P.planorbula、Pomacea sp.）、一种噻虫属（Aylacostoma sp.）和一种胭脂虫属（Sioliella sp。已知这些腹足纲动物出现在淡水环境中，从而巩固了半咸水对阿克里盆地上中新世沉积物没有影响的假设。考虑到生物特征分析和外壳形态描述，先前对斑点假单胞菌和Aylacostoma sp.的鉴定在这里发生了变化。Sioliella在该盆地的首次报告增加了以这些地层闻名的腹足类动物群，并扩大了该属的范围。关键词：Pomacea，Aylacostoma，Sioliella，Ampullariidae，Thiaridae，Cochliopidae。

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Gastropods from the Solimões Formation (upper Miocene), Acre Basin, Brazil

A taxonomic review of Miocene gastropods from the Solimões Formation, Acre Basin, Brazil, from specimens collected at Cachoeira do Bandeira, Oriente, and an outcrop named Spot 04, is here presented. Three ampullariid species (Pomacea maculata, P.planorbula, Pomacea sp.), one thiarid species (Aylacostoma sp.), and one cochliopid species (Sioliella sp.) are identified for these deposits. These gastropod are known to occur in freshwaters environments, thus consolidating the hypothesis of a non-influence of brackish water on the upper Miocene deposits of the Acre Basin. The previous identification of P. maculata and Aylacostoma sp. is changed here considering biometrical analyses and shell morphological descriptions. The first report of Sioliella in this basin increases the gastropod fauna known for these strata and expands the range of this genus. Keywords: Pomacea, Aylacostoma, Sioliella, Ampullariidae, Thiaridae, Cochliopidae.

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来源期刊

Revista Brasileira De Paleontologia PALEONTOLOGY-

CiteScore

1.60

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： It publishes original contributions on all aspects of Paleontology. Papers are written in English, Spanish, or Portuguese and are reviewed by international experts.