At the beginning of the 20th century, Shalesky (мдзалеский, 1877 ~ 1946) mainly concentrated in the library. 19 1 1，Parapitys Zalessky， 19 1 1，Eristophyton Zalessky， 19 1 1，AlloxylonZalessky， 1927, Caenoxylon Zalessky, 19 1655, which pushed the study of late Paleozoic wood fossils in Russia to a new level. Because of the Great Patriotic War, Charlesky was brought to Berlin by the German army, which led to mental disorder and the study of wood fossils was once stagnant. In 1930s, Jarmolinko (авярмоленко, 1908 ~ 1944) made great contributions to Caucasus and Urals. Russian scientists named 18 ancient plants in his name, including wood fossils and modern plants, such as laricioxylon jarmolenkoi blokhina, 1985, in memory of this young paleobotanist who died for his country. From 1950s to 1960s, several famous experts on wood and wood fossils appeared, such as рхудайбердыев Hu Dayi Berdyyev, who is from the Caucasus (including Georgia). Three new genera (Ginkgo, 1962, Ginkgo, 1964 and Taiwan Province, 1964) were established. M.a.шилкина made a detailed study on Pliocene wood fossils near the Gottleqi Pass in the South Caucasus (possibly belonging to Georgia), and described 17 species, belonging to 13 genus, most of which were conifers and conifers. It is also suitable for early Jurassic and late Carboniferous conifers and cypresses in Upper Skull Ridge (верхонскирхрееет) in Eastern Siberia. In 1960s, she described 8 genera 14 species of coniferous wood fossils from Late Triassic to Early Cretaceous in Flanders-Joseph Islands in the Arctic region, including a new genus Keteleerioxylon and 6 new species. Through a series of studies, she thinks that the most abundant wood fossils in Mesozoic can be attributed to protoxylon and heteroxylon. These Pinaceae wood fossils not only have the ancient characteristics of Paleozoic wood, but also have the characteristics of modern Pinaceae, which is of great significance to the study of phylogeny. Naixiaoken (вднащокин) has done a lot of work on the Cretaceous to Neogene wood fossils in Siberia, and named some new species such as Pinuxylon, Xenoxylon and Podocarpoxylon. Moreover, the study of wood fossils has also been carried out. At the same time, there are ааааяценкохелвее, experts in wood and wood fossils.
In the 1960s and 1970s, Lebner (вглехина) made a systematic study on the Carboniferous-Permian dense gymnosperms in Kuznetsk Basin and the Zales fossils. 1969 and Zalesskioxylon Lepekhina, 1969 sorted out the wood of dense gymnosperms found in Russia in the late Paleozoic, and put forward the classification and naming standards of these wood fossils, thus systematically classifying and naming the wood fossils of dense gymnosperms in the world in the late Paleozoic.
Bolokina (ниблохина) is the most famous ancient timber expert in modern Russia. She and her colleague Peng Da Kling (овбор).
1) Early research on Mesozoic conifers in northern Siberia, and recent research on Cenozoic wood fossils in Russian Far East, including Amur region, coastal areas, kamchatka peninsula, Sakhalin Island and Thousand Islands.
2) A systematic description of gymnosperms and angiosperm wood fossils, including the discovery of new genera and new species, as well as the new habitats of old genera and old species, such as the first discovery of Populoxylon, Euonymus japonicus in Amur region, Alnus cremastogyne in southern Kamchatka Peninsula, Keteleerioxylon and Abies fargesii in coastal areas.
3) Study on the systematic evolution of wood fossils, especially conifers. For example, she thinks that the anatomical structure of some species of Cupressus orientalis is similar to the modern microbial community Kom, and the appearance time of Platycladus orientalis can be inferred (Blokhina, 1979,1988); The classification, evolution and phylogeny of Juglandaceae were studied in detail. The native wood, which was produced in Yarsk District, Si Nuo, Krakow in Late Jurassic, has the characteristics of the transition from Paleozoic type to modern group, and is presumed to be the ancestor of Pinaceae. The anatomical structure of protopressinoxylon munense in Lena River basin is close to that of modern cypress, which may be the most progressive representative in the evolutionary sequence of protopressinoxylon munense.
4) Analyze the anatomical characteristics, geographical distribution and existing genera and species of wood fossils, so as to study the sedimentary environment, paleogeography and paleoclimate of wood fossils. For example, the study of the Oligocene Engelhardioxylon wood fossils in kamchatka peninsula shows that the local climate in Oligocene is different from that in modern times, with warm and humid and obvious seasonal changes.
It shows that Russia has a vast territory and rich wood fossil resources, which were produced from Devonian to Quaternary. As early as 1855, Russian scholars began to officially publish monographs on wood fossils. 150 for more than 50 years, a large amount of information about wood fossils has been accumulated, and the contents compiled into Russian wood fossils are inevitably omitted this time. The main reasons are as follows: (1) Because these materials are scattered in the countries of the former Soviet Union, they are not concentrated, so it is difficult to collect them in China, and so are some rich monographs. Although we try our best to find some through foreign counterparts, it is still difficult to guarantee comprehensiveness. Editors only have "палеонтологическийу". () In most articles, there is no map indicating the place of origin. In this case, it is difficult to find the exact source of fossils. The new genus пареновд. 1965, which was established in the Permian strata in Kuzbas, was also not entered, mainly because the data could not be found. (3) Some Cenozoic angiosperm fossils are consistent with modern genus names or expressed by aff. See, failed to record without seeing the original data. (4) Caucasus and South Urals of the former Soviet Union. In the case of a relatively large producing area, it is not known whether it belongs to Russia now. (5) References may overlap with the accession of the former Soviet Union in Central Asia and national fossil data. In order to prevent omissions, you can cancel duplicates when sorting alphabetically. (6) For the collection of generic names and species names, this book only includes the names recorded in the original documents (including the names revised by later generations) without translation or revision. This treatment is mainly because the identification work in this area really goes beyond the current work and needs a lot of further investigation and research. The most notable example is the morphological generic name Dadoxylon, which was discontinued at the suggestion of Zheng Shaolin (2000) after the International Conference on Plant Nomenclature Principles (ICBN) held in Utrecht, the Netherlands in 1978. Lepekhina (1972) will also be replaced by Dadoxy Maheshwari (1967) and Chapmanoxy Pant et Singh (1987) in India. On the one hand, in order to determine the genera recorded in the past, it is necessary to verify the original documents and even the type specimens to confirm the relevant characteristics, so as to determine the genera that should be classified into the above two; On the other hand, the genus Dadoxylon is still widely used in international academic circles. For example, the newly published textbook of Paleobotany (Taylor et al., 2009, 79 1 page) still uses the name Dadoxylon.
Tisch
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