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Bryozoans of the order Melicerititida: Morphological features and position of the order in the taxonomic structure of the class Stenolaemata
Pleiades Publishing Ltd - - 2016
Chapter 7. Early Precambrian Ferruginous Quartzites (Jaspilites)
Pleiades Publishing Ltd - - 2024
Microfossils of presumably bacterial origin were found in 2.7–2.8 Ga banded
ferruginous quartzites in Karelia and the Kola Peninsula. The determination of
organic carbon content and balance calculations showed that these ferruginous
quartzites accumulated in an organic-rich environment. A comparative analysis of
the morphology of modern and Neoarchaean microorganisms suggests the bacterial
origin ...
Symmetry in topography and microstructure of vertebrate skin derivatives
Pleiades Publishing Ltd - Tập 48 - Trang 1284-1294 - 2014
Examples of symmetry and asymmetry of ectomesodermal skin derivatives are
considered. In biosymmetrics, this question is only mentioned in a few studies.
At the same time, in vertebrates, which are characterized by bilateral symmetry
of the body, abundant and diverse skin derivatives include various symmetrical
and asymmetrical structures. The main objects involved in the study are fish
scales (60...
A New Pareiasaur (Parareptilia) from the Lower Vyatkian (Upper Permian) of Orenburg Region, Russia
Pleiades Publishing Ltd - Tập 57 - Trang 646-658 - 2023
A new genus and species of pareiasaurs, Senectosaurus karamzini Boyarinova et
Golubev gen. et sp. nov., is described based on remains of the postcranial
skeleton of a large adult individual from the Lower Vyatkian of the
Preobrazhenka-2 locality (Orenburg Region). The new pareiasaur is characterized
by large postcranial platform-type osteoderms. The osteoderms are flattened,
with flat ventral and ...
Patterns of changes in Theromorph taxa of Permian terrestrial communities of Eastern Europe
Pleiades Publishing Ltd - Tập 49 - Trang 70-78 - 2015
The evolution of Late Permian tetrapod communities which include Theromorpha is
examined in the territory of Eastern Europe. It is noteworthy that changes in
the taxonomic composition of analogous ecobiomorph groups are connected with
certain biotic or abiotic factors. The analysis of these factors allows the
recognition of presumable causes of the crises in communities, which are
determined to a ...
The steps of vascular plant and land ecosystem evolution
Pleiades Publishing Ltd - Tập 47 - Trang 953-960 - 2013
Basal steps of higher plant evolution are reconstructed by the structure of
their conducting tissues. Historically, transport networks are derivatives of
buffer zones for symbiotic exchange between prokaryotic pro-cursers. Two
symbiogenetic acts (prochlorophytes + protists → higher algae; marine algae +
fungi → higher land plants) are fixed in plant body by two networks for water
transport. Descen...
A New Radiolarian Genus Nestelliana gen. nov. and New Species from the Late Devonian of the Polar Urals and the Early Carboniferous of the Volga–Ural Basin of Russia
Pleiades Publishing Ltd - Tập 56 - Trang 17-23 - 2022
The new radiolarian genus Nestelliana gen. nov. and two new species: N.
glomerosa sp. nov. and N. grassiclatrata sp. nov. are described from the
deposits of the Lower Tournaisian (Lower Carboniferous) of the Volga-Ural Basin
and the Lower Famennian (Upper Devonian) of the Polar Urals of Russia.
New Findings of Early Triassic Representatives of the Suborders Ussuritina and Paraceltitina (Ammonoidea) from South Primorye
Pleiades Publishing Ltd - Tập 55 Số 5 - Trang 489-496 - 2021
Review of the Jurassic Weevils of the Genus Belonotaris Arnoldi (Coleoptera: Nemonychidae) with a Straight Rostrum
Pleiades Publishing Ltd - - 2022
Species of the genus Belonotaris Arnoldi, 1977 with a straight rostrum from the
Middle-Upper Jurassic of Kazakhstan and China are revised. Arnoldibelus Legalov,
2009, syn. nov. and Sinoeuglypheus Yu, Davis et Shih, 2019, syn. nov. are
synonymized with Belonotaris. The diagnosis of Belonotaris is supplemented, and
its family placement is established. A key to B. daohugouensis (Yu, Davis et
Shih, 20...
Sự Phân Bố và Khác Biệt của Các Loài Hóa Thạch Oecophylla (Hymenoptera: Formicidae) Thông Qua Dấu Vết Cánh Dịch bởi AI
Pleiades Publishing Ltd - Tập 55 - Trang 76-89 - 2021
Mười dấu vết cánh giữa Miocen của Oecophylla Smith, 1860 (Vùng Stavropol, Nga)
được mô tả và mô tả lại từ bộ sưu tập của Phòng Thí Nghiệm Động Vật Nguyên Sơ
thuộc Viện Cổ Sinh vật học Borissiak của Viện Hàn lâm Khoa học Nga. Oecophylla
có những đặc điểm nổi bật trong mô hình mạch cánh, cho phép xác định hóa thạch.
Dựa trên nghiên cứu của chúng tôi về kiến hiện đại, một quy trình để xác định
dấu vế...
#Oecophylla #Hymenoptera #Formicidae #hóa thạch #dấu vết cánh #phân bố #lịch sử tự nhiên
Tổng số: 1,570
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