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Small Ducks (Aves: Anatidae) from the Early–Middle Miocene of Eurasia. 3. A Revision of Mionetta natator (Milne-Edwards, 1867) 2 .欧亚大陆中新世早期-中期的小鸭子(鸭科)。《游泳者的修正》(Milne-Edwards, 1867)
IF 0.6 4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-11-29 DOI: 10.1134/s0031030123060114
N. V. Zelenkov

Abstract

The results of a taxonomic and morphological revision of Mionetta natator (Milne-Edwards, 1867) from the lower Miocene of Western and Central Europe are presented. It is shown that the collections of small ducks from the Saint-Gérand-le-Puy localities (France) do indeed contain a small species of the genus Mionetta, which is here described as Mionetta defossa sp. nov. However, Mionetta natator represents a separate taxon, and is here assigned to the genus Caerulonettion gen. nov., showing morphological similarities with extant Malacorhynchus and fossil Mioquerquedula spp. The first small ducks from the lower Miocene of Kazakhstan are also described (Aral Formation, the Agyspe and Altynshokysu localities; Akzhar Formation, the Golubye Peski locality), tentatively attributed to Mionetta defossa and Mionetta sp. The diversity and relationships of small ducks of the Early and Middle Miocene of Eurasia are discussed.

摘要本文报道了西欧和中欧中新世晚期Mionetta natator (Milne-Edwards, 1867)的分类和形态修正结果。结果表明，在法国saint - gsamrand -le- puy地区收集的小鸭子中，确实有一种Mionetta属的小种类，在这里被描述为Mionetta defossa sp. 11 .然而，Mionetta natator代表一个单独的分类群，在这里被归入Caerulonettion gen. nov.。在形态上与现存的Malacorhynchus和化石Mioquerquedula spp相似。在哈萨克斯坦下中新世也发现了第一批小鸭子(Aral组，Agyspe和Altynshokysu地区);本文讨论了欧亚大陆早中新世和中中新世小鸭子的多样性及其相互关系。
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引用次数: 0
A New Species of Nucleolites (Echinoidea, Cassiduloida) from the Lower Albian of the Russian Plate 来自俄罗斯板块下阿尔卑斯统的核果石（回纹石目，Cassiduloida）新物种
IF 0.6 4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-11-29 DOI: 10.1134/S0031030123060035
E. A. Kalyakin, L. S. Barsukov
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引用次数: 0
Rhizoliths and Signs of Pedogenesis in the Late Permian of Central Russia 俄罗斯中部晚二叠世根茎石及其成土标志
IF 0.6 4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-11-29 DOI: 10.1134/s0031030123060047
E. V. Karasev, A. G. Sennikov, D. S. Mizintsev

Abstract

The remains of fossil roots (rhizoliths) of two morphotypes (M1 and M2) are described from Upper Permian deposits near the town of Vyazniki in the east of Vladimir region. In the section, M1 rhizoliths are vertically oriented and represented by several types of preservation: rhizocretions, imprints of the root surface, and root petrifactions. The study of the transverse and longitudinal sections of ferruginized root fragments has shown that the structure of the central conducting bundle (stele) can be of three types. It is observed that the branching areas of the lateral roots are arranged into four rhizostichies, indicating a tetrarchic type of stele for these roots. The discovery of the remains of root systems in an upright position and without any traces of transportation indicate the first stages of primary soil formation. M2 rhizoliths are a network of finely intertwined roots. The new finds of in situ rhizoliths significantly complement our understanding of the Late Permian paleoenvironments and paleoecosystems in the center of the Russian Platform.

摘要在弗拉基米尔地区东部Vyazniki镇附近的上二叠统矿床中发现了M1和M2两种形态的根(根)化石遗迹。在该剖面中，M1根石柱垂直定向，由几种保存类型代表:根纹、根表面印记和根石化。对铁化根碎片的横切面和纵切面的研究表明，中央导束(柱)的结构可以分为三种类型。观察到侧根的分枝区排列成四个根丛，表明这些根为四分基型柱。直立位置的根系遗迹的发现和没有任何运输的痕迹表明初级土壤形成的第一阶段。M2根石柱是一个由精细缠绕的根组成的网络。新发现的原位根茎石极大地补充了我们对俄罗斯地台中心晚二叠世古环境和古生态系统的认识。
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引用次数: 0
Ovis gracilis sp. nov. (Artiodactyla, Bovidae) from the Lower Pleistocene of the Taurida Cave in the Crimea and History of the Genus Ovis 来自克里米亚陶里达洞穴下更新世的 Ovis gracilis sp.
4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-09-25 DOI: 10.1134/s0031030123050118
I. A. Vislobokova
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引用次数: 0
Aptian–Albian Oysters from the Southwestern Spurs of the Gissar Ridge. Part 3. Genus Oscillopha Malchus 来自吉萨山脊西南刺的阿普提亚-阿尔比亚牡蛎。第3部分。示波器属
4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-09-25 DOI: 10.1134/s0031030123050052
E. K. Metelkin, I. N. Kosenko
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引用次数: 0
A New Species of the Family Electrotomidae (Hymenoptera, Symphyta, Tenthredinoidea) from the Baltic Amber 文章标题波罗的海琥珀电虻科一新种(膜翅目，合总科，电虻总科)
4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-09-25 DOI: 10.1134/s0031030123050076
A. P. Rasnitsyn, A. R. Manukyan
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引用次数: 0
New Caddisflies (Insecta: Trichoptera, Necrotauliidae, Philopotamidae) from the Jurassic of Asia and Their Triassic Ancestors 亚洲侏罗纪新热蝇(昆虫纲:毛翅目，热蝇科，热蝇科)及其三叠纪祖先
4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-09-25 DOI: 10.1134/s003103012305009x
I. D. Sukatsheva, N. D. Sinitshenkova
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引用次数: 0
Shell Ontogeny of the Type Species of the Genus Neouddenites (Ammonoidea, Medlicottiidae) from the Kungurian of Western Verkhoyanie 西verkhoyanie Kungurian新齿螈属模式种的壳体发育(ammono总科，medlicottidae)
4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-09-25 DOI: 10.1134/s0031030123050039
R. V. Kutygin
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引用次数: 0
Fossil Organisms and Their Role in the Formation of Black Oncolites of the Vendian Kalancha Formation in the Baikal–Patom Highlands of Eastern Siberia 东西伯利亚贝加尔湖-帕托姆高原文迪安-卡兰恰组黑色肿瘤形成中的生物化石及其作用
4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-09-25 DOI: 10.1134/s0031030123030097
T. V. Litvinova
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引用次数: 0
Small Ducks (Aves: Anatidae) from the Early–Middle Miocene of Eurasia. Part 2. The Fauna of Tagay Locality (Baikal Region; Eastern Siberia) 欧亚大陆中新世早期-中期的小鸭子(鸭科)。第2部分。贝加尔湖地区塔盖地区的动物群西伯利亚东部)
4区 地球科学 Q4 PALEONTOLOGY
Paleontological Journal
Pub Date : 2023-09-25 DOI: 10.1134/s003103012305012x
N. V. Zelenkov
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引用次数: 1
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