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New Odostomia species (Gastropoda, Heterobranchia, Pyramidellidae) from the Miocene Pebas Formation of Western Amazonia (Peru, Colombia) Naturalis
Aartsen, J.J. van; Wesselingh, F.P..
Odostomia nuttalli spec. nov. and O. coluhensis spec. nov. are described from the Miocene Pebas Formation of Peruvian and Columbian Amazonia. A third pyramidellid snail is also diagnosed. These species are indicators for marine influence in the late Middle to early Late Miocence of Western Amazonia. Some ecological implications are discussed.
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Gastropoda; Odostomia; Systematics; Miocene; Amazonia; Pebas Formation; 38.22; 42.73.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/235155
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Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1). CANCAP-project. Contributions, no. 119 Naturalis
Aartsen, J.J. van; Gittenberger, E.; Goud, J..
The species of the Pyramidellidae collected during several expeditions in the south-eastern part of the North Atlantic Ocean are listed, with locality data, depth ranges, and notes on nomenclature, systematics and distribution. The samples classified with the genera Pyramidella, Tiberia, Adelactaeon, Odetta, Folinella, Ondina, Odostomia, Puposyrnola and Eulimella (partly) are dealt with in this paper. In total 64 species are reported from the research area, 32 of which are described as new to science; one nomen novum is introduced. Lectotypes of Aclis tricarinata Watson, 1897, Monoptygma puncturata Smith, 1872, Odetta sulcata de Folin, 1870, and Odostomia sulcifera Smith, 1872, are designated and figured. In an appendix, the complete locality data of the...
Tipo: Article / Letter to the editor Palavras-chave: Pyramidellidae; New species; North Atlantic Ocean.; 42.73.
Ano: 1998 URL: http://www.repository.naturalis.nl/record/317885
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Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 2) Naturalis
Aartsen, J.J. van; Gittenberger, E.; Goud, J..
The species of the Pyramidellidae collected during several expeditions in the south-eastern part of the North Atlantic Ocean are listed, with locality data, depth ranges, and notes on nomenclature, systematics and distribution. The samples classified with the genera Eulimella (partly), Anisocycla, Syrnola, Chrysallida and Odostomella are dealt with in this paper. In total 70 species are reported from the research area, 24 of which are described as new to science. A lectotype of Obeliscus gracillima Smith, 1872 (= Eulimella variabilis de Folin, 1870) and neotypes of Chrysallida multicostata (Jeffreys, 1884) and Jaminia obtusa Brown, 1827, are designated.
Tipo: Article / Letter to the editor Palavras-chave: Pyramidellidae; New species; North Atlantic Ocean; 42.73.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/215732
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