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

Lima, Laís Clark; Oliveira, Maury Pinto de

doi:10.1590/s0074-02761992000300013

Cited by 3 publications

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“…Although Biomphalaria fossils are described from South America, dating back to the Palaeocene (55–65 mya; Parodiz 1969), extant species are only known from the Holocene (10 000 ya to present; Lima 1984, 1987; Lima & Alexandre 1985; Lima & de Oliveira 1992). In Africa, despite a rich fossil record of molluscs, Biomphalaria fossils are conspicuously absent and the oldest may be as recent as 255 000 ya ( B. pfeifferi ; Van Damme, pers.…”

Section: Methodsmentioning

confidence: 99%

Phylogeography of Biomphalaria glabrata and B. pfeifferi, important intermediate hosts of Schistosoma mansoni in the New and Old World tropics

et al. 2003

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The historical phylogeography of the two most important intermediate host species of the human blood fluke Schistosoma mansoni, B. glabrata in the New World, and B. pfeifferi in the Old World, was investigated using partial 16S and ND1 sequences from the mitochondrial genome. Nuclear sequences of an actin intron and internal transcribed spacer (ITS)-1 were also obtained, but they were uninformative for the relationships among populations. Phylogenetic analyses based on mtDNA revealed six well-differentiated clades within B. glabrata: the Greater Antilles, Venezuela and the Lesser Antilles, and four geographically overlapping Brazilian clades. Application of a Biomphalaria-specific mutation rate gives an estimate of the early Pleistocene for their divergence. The Brazilian clades were inferred to be the result of fragmentation, due possibly to climate oscillations, with subsequent range expansion producing the overlapping ranges. Within the Venezuela and Lesser Antilles clade, lineages from each of these areas were estimated to have separated approximately 740 000 years ago. Compared to B. glabrata, mitochondrial sequences of B. pfeifferi are about 4x lower in diversity, reflecting a much younger age for the species, with the most recent common ancestor of all haplotypes estimated to have existed 880 000 years ago. The oldest B. pfeifferi haplotypes occurred in southern Africa, suggesting it may have been a refugium during dry periods. A recent range expansion was inferred for eastern Africa less than 100 000 years ago. Several putative species and subspecies, B. arabica, B. gaudi, B. rhodesiensis and B. stanleyi, are shown to be undifferentiated from other B. pfeifferi populations.

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Section: Methodsmentioning

confidence: 99%

Phylogeography of Biomphalaria glabrata and B. pfeifferi, important intermediate hosts of Schistosoma mansoni in the New and Old World tropics

et al. 2003

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“…One of the localities of occurrence indicated by Simone (2006), the municipality of Central, is mistaken. It was based on the work of Lima and Oliveira (1992), who reported P. polygyrata from an archaeological setting in that municipality. Their identification is erroneous and their specimen (Lima and Oliveira 1992: fig.…”

Section: Methodsmentioning

confidence: 99%

“…It was based on the work of Lima and Oliveira (1992), who reported P. polygyrata from an archaeological setting in that municipality. Their identification is erroneous and their specimen (Lima and Oliveira 1992: fig. 4) actually belongs to Systrophia (Entodina) Ancey, 1887, given the shell size and parietal fold in the aperture.…”

Section: Methodsmentioning

confidence: 99%

Taxonomy and distribution of enigmatic “helicoid” Polygyratia Gray, 1847 (Gastropoda, Stylommatophora)

Salvador¹,

Cavallari‬²

2020

ZSE

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Herein, we present a taxonomic revision of the genus Polygyratia Gray, 1847, with a new systematic placement in Scolodontidae and containing only the species Polygyratia polygyrata (Born, 1778). We offer an updated morphological description and geographical distribution, based on museum specimens and occurrence data gathered from literature and online database iNaturalist. We synonymise P. charybdis Mörch, 1852 with P. polygyrata. The species is known only from Atlantic Forest areas in Bahia state, eastern Brazil. We exclude three other species from the genus Polygyratia, classifying them as: Systrophia (Systrophia) heligmoida (d’Orbigny, 1835) and S. (Entodina) reyrei (Souverbie, 1858), based on conchological features; and S. (E.) pollodonta (d’Orbigny, 1835), though tentatively, based on scant published data. Finally, we present the first report of S. (S.) heligmoida (d’Orbigny, 1835) from Brazil.

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“…Este é um grande problema, pois o registro da bacia é consideravelmente antigo e rico o suficiente para ser de grande ajuda em trabalhos de paleobiogeografia e sistemática. (Scheffler & Salgado, 2007;Scheffler et al, 2010) e Bahia (Lima & Oliveira, 1992), ou ainda de locais distantes da distribuição atual da família como, por exemplo, o estado do Kansas, EUA (Miller, 1970).…”

Section: Os Registros Das Famílias De Itaboraíunclassified

Revisão taxonômica da malacofauna fóssil da Bacia de Itaboraí (Paleoceno), Rio de Janeiro

Salvador¹

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AgradecimentosAo meu orientador, Prof. Dr. Luiz Ricardo Lopes de Simone (MZSP), por compartilhar um pouco de seu inesgotável conhecimento sobre os moluscos e, obviamente, por todo o apoio e incentivo durante a realização deste trabalho, sempre me impulsionando a seguir em frente, principalmente naqueles momentos em que me deparava com dúvidas que pareciam intransponíveis, mas que ele resolvia quase que instantaneamente. Acima de tudo, sou grato pelo voto de confiança ao me entregar uma fauna tão ampla e diversa para o meu mestrado. À minha família, pelo constante apoio, não só durante os altos e baixos deste trabalho, mas desde sempre; por chegar aqui hoje devo muito a eles. A Barbara M. Tomotani, por todo apoio e ajuda (inclusive me acompanhando nas visitas aos museus do Rio), pela paciência em me escutar falando sobre caramujos e também por estar sempre pronta a me dar aquele empurrãozinho. Aos meus amigos aventureiros pelo companheirismo, pela disposição em ajudar e, claro, pelos nossos momentos de descontração (muito necessários, por sinal!).A todos os integrantes do Laboratório de Malacologia do MZSP por toda a camaradagem e por estarem sempre prontos para dar uma mãozinha. Aos funcionários da biblioteca do MZSP, especialmente a Ricardo Pianista, Dione Seripierri e Claudia A. Melo, pela infinita paciência que mostraram com certo aluno incrivelmente chato, que sempre chegava procurando por trabalhos antigos e obscuros.

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

Cited by 3 publications

References 0 publications

Phylogeography of Biomphalaria glabrata and B. pfeifferi, important intermediate hosts of Schistosoma mansoni in the New and Old World tropics

Phylogeography of Biomphalaria glabrata and B. pfeifferi, important intermediate hosts of Schistosoma mansoni in the New and Old World tropics

Taxonomy and distribution of enigmatic “helicoid” Polygyratia Gray, 1847 (Gastropoda, Stylommatophora)

Revisão taxonômica da malacofauna fóssil da Bacia de Itaboraí (Paleoceno), Rio de Janeiro

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