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Pleistocene gastropods from Toca da Esperança, municipality of Central, State of Bahia, Brazil

Abstract

Fossil shells collected during excavations in Toca da Esperança, BA, were identified on morphological grounds as: Artemon intermedius intermedius (Albers, 1857); Gastrocopta (Privatula) corticaria (Say); Bulimulus (Rhinus) heterotrichus (Moricand, 1836) and Polygyratia polygyrata polygyrata (Born, 1780). Bone samples found associated with these shells were dated by the Uranium - Thorium method as being between 204,000 and 295,000 years old (Middle - Upper Pleistocene). Species of the mastofauna also found associated, on the other hand, were identified as being of the Upper Pleistocene or even of the beginning of the Holocene. The material studied here was not dated.

Gastropoda; Stylommatophora; Pleistocene


ABSTRACT

Pleistocene gastropods from Toca da Esperança, municipality of Central, State of Bahia, Brazil

Lais Clark Lima1

Maury Pinto de Oliveira2

FIOCRUZ, Centro de Pesquisas Reneé Rachou, Belo Horizonte, Brasil

Universidade Federal de Juiz de Fora, Juiz de Fora, Brasil

Fossil shells collected during excavations in Toca da Esperança, BA, were identified on morphological grounds as: Artemon intermedius intermedius (Albers, 1857); Gastrocopta (Privatula) corticaria (Say); Bulimulus (Rhinus) heterotrichus (Moricand, 1836) and Polygyratia polygyrata polygyrata (Born, 1780). Bone samples found associated with these shells were dated by the Uranium - Thorium method as being between 204,000 and 295,000 years old (Middle - Upper Pleistocene). Species of the mastofauna also found associated, on the other hand, were identified as being of the Upper Pleistocene or even of the beginning of the Holocene. The material studied here was not dated.

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Publication Dates

  • Publication in this collection
    15 June 2009
  • Date of issue
    Sept 1992
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