Nova espécie de Thaumastus da Floresta Atlântica do Paraná, Brasil (Mollusca, Gastropoda, Pulmonata, Bulimuloidea)

Colley, Eduardo

doi:10.1590/s0073-47212012000100006

Cited by 3 publications

(1 citation statement)

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“…Moreover, land snails are present in non-coastal sites throughout the Brazilian territory (Prous 1986; Mello and Coelho 1989; Moreira et al 1991; Magalhães et al 2001; Brentano et al 2006; Rogge 2006; Rosa 2006; Teixeira 2006; Gernet and Birckolz 2011; Agudo-Padrón 2012; Bandeira 2013; Beltramino 2013; Hadler et al 2013). Among the species commonly found are those from the genera Megalobulimus (Miller 1878) and Thaumastus (Martens 1860) (Figure 2), both endemic to South America and characteristic of high humidity environments (Colley 2012; Fontenelle et al 2014; Macario et al 2016a). Therefore, their presence is also a climate indicator, since it is related to rainy seasons or periods of increased humidity (Abbott 1989; Rosa 2006).…”

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confidence: 99%

Terrestrial Mollusks as Chronological Records in Brazilian Shellmounds

et al. 2017

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Among other zooarchaeological remains, terrestrial snails’ shells from the Thaumastus and Megalobulimus genera are found in some Brazilian shellmounds, presenting a potential substitute for charcoal in radiocarbon dating analyses, as reliable representatives of the atmospheric carbon isotopic ratio. In this paper, we present statistically similar results of both charcoal and land snails samples from the same archaeological contexts in three settlements on the coast of Rio de Janeiro. The Manitiba I shellmound results range from 4.2 to 3.7 ka cal BP (95.4%), contemporary with the Saquarema shellmound, occupied during the period from 4.3 to 3.6 ka cal BP (95.4%). For the Usiminas shellmound, two groups of samples revealed different periods of time for two occupational layers from 2.3 to 2.1 ka cal BP (95.4%) and from 1.6 and 1.3 ka cal BP (95.4%). A model constraining each group of samples to within a single phase has a general agreement of 97% with only two outliers out of 22 dates, yielding minimum individual agreement of 74% and 7% posterior outlier probability for Saquarema shells. These are good examples of sites in which the occupation chronology can be successfully obtained by the radiocarbon dating of land snails.

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Section: Introductionmentioning

confidence: 99%

Terrestrial Mollusks as Chronological Records in Brazilian Shellmounds

et al. 2017

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Catalogue of the type specimens deposited in the Mollusca Collection of the Museu Nacional / UFRJ, Rio de Janeiro, Brazil

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Monteiro

Barbosa

et al. 2014

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A curatorial revision of the type specimens deposited in the Mollusca Collection of the Museu Nacional / UFRJ, Rio de Janeiro, Brazil (MNRJ) revealed the existence of 518 lots of type specimens (holotypes, neotypes, syntypes and paratypes) for 285 names of molluscan taxa from 88 families, including 247 gastropods, 30 bivalves, three cephalopods and five scaphopods. A total of 106 holotypes and one neotype are deposited in the MNRJ. Type material for ten nominal taxa described as being deposited in the MNRJ was not located; the probable reasons are discussed. Some previously published erroneous information about types in the MNRJ is rectified. A total of 37 type specimens are illustrated.

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