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

Memórias do Instituto Oswaldo Cruz

Lais Clark Lima²  Maury Pinto De Oliveira¹ 

[1] ,FIOCRUZ Centro de Pesquisas Reneé Rachou Belo Horizonte,Brasil

关键词: Gastropoda;    Stylommatophora;    Pleistocene;   

DOI  :  10.1590/S0074-02761992000300013

来源: SciELO

【 摘 要 】

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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