Results 131 to 140 of about 4,872 (179)
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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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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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?????????? ???????? ???????????????????????? ?????????????????? (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
???? ?????????????? ?????????????????? ???????????? ??????????, ?????????????????????? ???????????????????????? ?????????????????????? ?????????????? ???????????????? ?????????????????? Unionidae ???? ?????? ???????????????????? ???????????????? ????????????????????????????. ???????????? ?????????????????????? ??????????, ?????????????????????? ????????
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???? ?????????????? ?????????????????? ???????????? ??????????, ?????????????????????? ???????????????????????? ?????????????????????? ?????????????? ???????????????? ?????????????????? Unionidae ???? ?????? ???????????????????? ???????????????? ????????????????????????????. ???????????? ?????????????????????? ??????????, ?????????????????????? ????????
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2020
Classe Bivalvia: generalità, anatomia, morfologia, classificazione ed evoluzione, ecologia e paleoecologia.
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Classe Bivalvia: generalità, anatomia, morfologia, classificazione ed evoluzione, ecologia e paleoecologia.
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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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1932
In der einschlagigen Literatur wird die Tatsache, das, ahnlich wie bei den Schnecken, auch innerhalb der sehr artenreichen Gruppe der Muscheln kaum eine Spezies existiert, die vollkommen symmetrischen Bau aufweist, viel zu wenig gewurdigt. Die kleineren Asymmetrien sind meist die Folge davon, das die eine Schalenklappe schlosartig in der anderen ...
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In der einschlagigen Literatur wird die Tatsache, das, ahnlich wie bei den Schnecken, auch innerhalb der sehr artenreichen Gruppe der Muscheln kaum eine Spezies existiert, die vollkommen symmetrischen Bau aufweist, viel zu wenig gewurdigt. Die kleineren Asymmetrien sind meist die Folge davon, das die eine Schalenklappe schlosartig in der anderen ...
openaire +1 more source