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BIBTEX RIS

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

2021; Volume: 24; Issue: 3 Linguagem: Inglês

10.4072/rbp.2021.3.03

ISSN

2236-1715

Autores

Felipe Nascimento Sousa, Rodrigo Cesar Marques, Victor Rodrigues Ribeiro, Geovane Augusto Gaia, Edson Guilherme, Andréa Aparecida Da Rocha Maciente, Jonas P. Souza-Filho, Annie Schmaltz Hsiou, Renato Pirani Ghilardi,

Tópico(s)

Paleontology and Stratigraphy of Fossils

Resumo

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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