Results 171 to 180 of about 16,812 (219)
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2007
Los bivalvos constituyen una clase de moluscos ampliamente reconocida por el público en general. La conchilla o esqueleto calcáreo que, en vida, contiene a las partes blandas del animal, frecuentemente es hallada mezclada con los sedimentos depositados en las playas marinas o a lo largo de los cursos fluviales.
Camacho, Horacio Homero +4 more
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Los bivalvos constituyen una clase de moluscos ampliamente reconocida por el público en general. La conchilla o esqueleto calcáreo que, en vida, contiene a las partes blandas del animal, frecuentemente es hallada mezclada con los sedimentos depositados en las playas marinas o a lo largo de los cursos fluviales.
Camacho, Horacio Homero +4 more
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2023
Results of nomenclatorial studies of some genus group names within Unio s. I. published by G. Servain (1882) and P. Pallary 1939).
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Results of nomenclatorial studies of some genus group names within Unio s. I. published by G. Servain (1882) and P. Pallary 1939).
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?????????? ???????? ???????????????????????? ?????????????????? (Bivalvia, Cycladidae)
2023The Euglesa solodovnikovi snail is elongated-oval, moderately convex, thin-walled. The convexity-height ratio of the snail is 0.59, the convexity-length one ??? 0.47. The most remote point from the valve closing plane is at a half of the valve height. The E. eichwaldi snail is oval, shallow-convex, thin-walled.
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2023
A description is given of four new species of the superfamily Pisidiidae from Upper Eocene of the Zaysan depression: Amesoda martinsoni sp. n., A. kustovica sp. n., Musculium praelacustris sp. n., Pisidium jugatum sp. n. They are found in association with the fossil turtle, fishes, mammals and spore-pollinic complexes.
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A description is given of four new species of the superfamily Pisidiidae from Upper Eocene of the Zaysan depression: Amesoda martinsoni sp. n., A. kustovica sp. n., Musculium praelacustris sp. n., Pisidium jugatum sp. n. They are found in association with the fossil turtle, fishes, mammals and spore-pollinic complexes.
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2023
???? ?????????????? ?????????????????? ???????????? ??????????, ?????????????????????? ???????????????????????? ?????????????????????? ?????????????? ???????????????? ?????????????????? Unionidae ???? ?????? ???????????????????? ???????????????? ????????????????????????????. ???????????? ?????????????????????? ??????????, ?????????????????????? ????????
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???? ?????????????? ?????????????????? ???????????? ??????????, ?????????????????????? ???????????????????????? ?????????????????????? ?????????????? ???????????????? ?????????????????? Unionidae ???? ?????? ???????????????????? ???????????????? ????????????????????????????. ???????????? ?????????????????????? ??????????, ?????????????????????? ????????
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The early evolution of the Bivalvia
1995Abstract Classification of the Bivalvia has proved contentious for well over a century, and new classifications at high taxonomic level are still produced regularly. But in a group of organisms, represented today by tens of thousands of species and with an excellent fossil record, why should taxonomy at higher levels cause such problems?
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