Palynological characteristics of Upper Cretaceous and Paleogene deposits on the west of the Sambian Peninsula (Kaliningrad region), Part 2

Александрова, Г. Н.; Zaporozhets, N. I.

doi:10.1134/s0869593808050067

Cited by 65 publications

(27 citation statements)

References 11 publications

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“…It is difficult to evaluate when the process of the substitution of bacteria with fungi began, or how the bacterial genome evolved. However, the earliest representatives of the subfamily Hormaphidinae have been found in northern Europe in the Eocene Baltic amber (40–35 million years; Wappler , ; Aleksandrova and Zaporozhets ,b; Weitschat and Wichard ) and belonged to the tribe Cerataphidini (Wegierek and Zyla ). It is assumed that the changes in the group distribution were related to the gradual cooling of the climate in this part of the world (Zachos et al .…”

Section: Discussionmentioning

confidence: 99%

Buchnera aphidicola of the birch blister aphid, Hamamelistes betulinus (Horváth, 1896) (Insecta, Hemiptera, Aphididae: Hormaphidinae): molecular characterization, transmission between generations and its geographic significance

et al. 2017

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Wegierek, P., Michalik, A., Wieczorek, K., Kanturski, M., Kobiałka, M., Sliwa, K. and Szklarzewicz, T. 2017. Buchnera aphidicola of the birch blister aphid, Hamamelistes betulinus (Horv ath, 1896) (Insecta, Hemiptera, Aphididae: Hormaphidinae): molecular characterization, transmission between generations and its geographic significance. -Acta Zoologica (Stockholm) 98: 412-421.The birch blister aphid Hamamelistes betulinus, like most aphids, is host to obligate symbiotic bacterium Buchnera aphidicola. Ultrastructural and molecular analyses did not reveal the presence of secondary symbionts in the body of H. betulinus. The bacteria Buchnera aphidicola are transmitted to the next generation vertically (maternally). The bacteria released from the cytoplasm of the bacteriocyte to the haemolymph migrate to the embryo at the cellular blastoderm stage, through the opening at its posterior pole. Next, the bacteria enter the cytoplasm of newly formed bacteriocytes. The concept of the relationship between the geographic distribution of Hormaphidini aphids and the presence/ absence of bacterium Buchnera aphidicola is discussed.

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Section: Discussionmentioning

confidence: 99%

Buchnera aphidicola of the birch blister aphid, Hamamelistes betulinus (Horváth, 1896) (Insecta, Hemiptera, Aphididae: Hormaphidinae): molecular characterization, transmission between generations and its geographic significance

et al. 2017

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“…As the evidence from insect fauna indicates, the age of the Rovno ambers is identical to that of Baltic amber (Kosmowska-Ceranowicz, 1999;Perkovsky et al, 2003) and corresponding to Upper Eocene (see Perkovsky et al, 2007Perkovsky et al, , 2010Aleksandrova & Zaporozhets, 2008a, 2008b.…”

Section: Introductionmentioning

confidence: 89%

Mosses from Rovno amber (Ukraine)

Ignatov

Perkovsky²

2011

Arctoa, a jornal of bryology

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Seven moss genera are revealed in Eocene amber from Rovno (Ukraine). Some species are similar to those from Baltic amber (Hypnodontopsis mexicana, H. piliferum, Ctenidium capillifolium, Tristichella glabrescens), while others can be referred to Sematophyllites from Baltic amber, but not identical to any of the described species of this genus. Neckerites gen. nov. is described to accommodate plants very similar to the modern Neckeraceae, although even the genus cannot be indicated for sure. Palamocladium fossile sp. nov. and Isopterygiopsis minutirameum represent new genera to Eocenic amber flora. One moss fragment with short and broad leaves is left unnamed, as its diagnostic characters are too poorly seen. РезюмеСемь родов мхов найдены в янтаре эпохи Эоцена из Ровно (Украина). Неко-торые виды сходны с ранее описанными из балтийских янтарей (Hypnodontopsis mexicana, H. piliferum, Ctenidium capillifolium, Tristichella glabrescens), в то время как другие можно отнести к роду Sematophyllites из балтийских янтарей, однако они не похожи ни на один из описанных видов этого рода. Описан род Neckerites gen. nov., включающий растения, очень похожие на современных представителей семейства Neckeraceae, хотя невозможно уверенно указать современный род, с которым они сходны. Palamocladium fossile sp. nov. и Isopterygiopsis minutirameum представляют новые роды для янтаря Эоцена. Один фрагмент мха с короткими и широкими листьями остался не описанным, поскольку его диагностические признаки плохо выявляются.

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“…). A single palynological study by Aleksandrova & Zaporozhets () dated the Prussian Formation of Baltic amber as late Eocene in age ( c . 39–33.9 Ma), which is considered to be overly young (Alekseev & Alekseev ).…”

Section: Paederinae Of the Baltic Amber: Challenges Of A Study Systemmentioning

confidence: 99%

Baltic amber impact on historical biogeography and palaeoclimate research: oriental rove beetleDysanabatiumfound in the Eocene of Europe (Coleoptera, Staphylinidae, Paederinae)

Bogri

Solodovnikov

Żyła

2018

Papers in Palaeontology

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Baltic amber is a rich source of fossilized organisms and a valuable tool for evolutionary, biogeographical and palaeoenvironmental research. Because it is found in several deposits around the Baltic Sea, the exact area of origin, age in the Eocene and palaeoenvironment of the amber forest form a subject for ongoing discussion. Furthermore, there is a puzzling connection between Eocene climate change and the co‐occurrence of thermophilic and temperate insect taxa in Baltic amber, sometimes even in the same inclusions. We revisit these issues through a new piece of evidence: the rare South‐East Asian rove beetle genus Dysanabatium (11 extant species) found to be abundant in Baltic amber. We describe four new extinct species of Dysanabatium based on 13 specimens from 8 amber pieces collected in Denmark, Poland, Ukraine and Russia. These species are Dysanabatium kechrimparense sp. nov., D. aenaum sp. nov., D. damgaardi sp. nov. and D. johannesi sp. nov. The occurrence of one species, D. kechrimparense sp. nov., in the amber from all countries, as well as its co‐occurrence with D. damgaardi sp. nov. in one amber piece from Russia, suggest a possible common origin of Baltic amber from all these deposits. Dysanabatium adds to a plethora of fossil species congeneric with extant species restricted to South‐East Asia, which points to the warm and equable climate of the north European Eocene amber forest.

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Palynological characteristics of Upper Cretaceous and Paleogene deposits on the west of the Sambian Peninsula (Kaliningrad region), Part 2

Cited by 65 publications

References 11 publications

Buchnera aphidicola of the birch blister aphid, Hamamelistes betulinus (Horváth, 1896) (Insecta, Hemiptera, Aphididae: Hormaphidinae): molecular characterization, transmission between generations and its geographic significance

Buchnera aphidicola of the birch blister aphid, Hamamelistes betulinus (Horváth, 1896) (Insecta, Hemiptera, Aphididae: Hormaphidinae): molecular characterization, transmission between generations and its geographic significance

Mosses from Rovno amber (Ukraine)

Baltic amber impact on historical biogeography and palaeoclimate research: oriental rove beetleDysanabatiumfound in the Eocene of Europe (Coleoptera, Staphylinidae, Paederinae)

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