scholarly journals Analysis of demographic and morphological parameters of adventitious Stenomphalia ravergiensis (Mollusca, Gastropoda, Pulmonata) populations in the south of the Central Russian Upland

Author(s):  
Eduard A. Snegin ◽  
◽  
Valeria V. Adamova ◽  
2020 ◽  
Vol 22 (1) ◽  
pp. 58-66
Author(s):  
E. V. Podzuban

The present article features a collection of prehistoric artifacts obtained at the Kushek-4 site. The excavations were conducted along the right bank of the Uly-Zhylanshik river in the south of the Turgay in 2006. The stone tools collected from the surface underwent a technical and typological analysis, which made it possible to date the site. The main parameters of the technical and typological analysis included primary rock flakes, morphological parameters and size of the plates, percentage ratio of ingots and tools from plates and rock flakes, methods of secondary processing, and the typological composition of the tool kit. The nature of the raw materials was an independent indicator. The technical and typological indicators of the stone tools from the Kushek-4 site corresponded to the second group of monuments of the Turgay Depression with their rich Neolithic material. The stone tools were homogeneous and dated from the late Mesolithic to the late Neolithic.


2021 ◽  
Vol 40 ◽  
pp. 01011
Author(s):  
Tatyana Glubsheva ◽  
Vladimir Cherniavskih ◽  
Elena Dumacheva ◽  
Oxana Vorobyova ◽  
Svetlana Grigorenko

The processes of formation of many species are observed in the south of the Central Russian Upland. For these conditions, the morpho-anatomical features of the tepals of Tulipa biebersteiniana Schult. Et. Schult. fil as the adaptive potential of seed propagation were studied for the first time. The tepals are arranged in two circles and differ in morphological and anatomical features. Differences in the structure of the main cells of the epidermis on the abaxial and adaxial sides were revealed. On the abaxial side, the main epidermal cells are rectangular, sometimes fusiform or rarely diamond-shaped, arranged in rows. They are covered with a weakly longitudinally wrinkled cuticle. The side walls of the abaxial surface are straight or slightly curved. On the adaxial surface, the side walls are zigzag, passing to the lateral edge in strongly sinuous. The localization, estimated functions and sizes of the hairs on the leaves of the tulip were determined. Single celled trichomes are located in two places.


2020 ◽  
Vol 53 (8) ◽  
pp. 1033-1045
Author(s):  
Yu. G. Chendev ◽  
A. N. Gennadiev ◽  
S. V. Lukin ◽  
T. J. Sauer ◽  
E. A. Zazdravnykh ◽  
...  

2019 ◽  
Vol 12 (2) ◽  
pp. 203-210 ◽  
Author(s):  
Vladimir Cherniavskih ◽  
Elena V. Dumacheva ◽  
Fedor N. Lisetskii ◽  
Boris G. Tsugkiev ◽  
Larisa Ch. Gagieva

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