INFORMATION ABOUT FLORA OF THE UST-BELSKY NATURE PARK (UDMURT REPUBLIC)

The article presents the results of a long-term study of the indigenous flora of the Ust-Belsky Nature Park. A list of vascular plants is given. There are 588 plant species from 299 genera and 87 families. The territory of the park consists of 2 clusters. They are located on different banks of the Kama River. The list contains cluster information for each plant species. Only 477 plant species are common to the two clusters, while the remaining species are characteristic of individual sections of the natural park. There are 68 such types in cluster 1, and 43 in cluster 2. In the course of floristic studies in different years, the growth of 23 rare plant species listed in the Red Book of the Udmurt Republic was recorded on the territory of the Ust-Belsky Natural Park.

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ON THE CHAUN PALAEOFLORA FROM NON-MARINE CRERACEOUS OF CHUKOTKA

Tikhookeanskaya Geologiya ◽

10.30911/0207-4028-2021-40-2-55-66 ◽

2021 ◽

pp. 55-66

Author(s):

S.V. Shchepetov ◽

◽

V.Yu. Neshataeva ◽

Keyword(s):

Plant Species ◽

Environmental Conditions ◽

Vegetation Cover ◽

Term Study ◽

Coastal Lowland ◽

Volcanogenic Belt ◽

Long Term Study ◽

Fossil Floras ◽

Systematic Composition

The Cretaceous fossil floras from the formations of the Okhotsk-Chukotka volcanogenic belt differ significantly by its systematic composition from the same-age fossil floras from the coastal lowland sedimentations. The peculiarities of fossil floras from the volcanogenic disposals are the most obvious in Chaun Flora firstly found in the volcanogenic formations of Pegtymelski Arch in Central Chukotka. L.B. Golovneva presented the results of the long-term study of this flora in the monograph published in 2018. On the base of these data and using our own experience in the stratigraphy of the Okhotsk-Chukotka volcanogenic belt and the study of the vegetation cover dynamics in the areas of modern volcanism of Kamchatka we showed that most likely Chaun Flora formed on juvenile substrata in the central parts of the vast volcanic fields being isolated form the sources of diasporas. The Chaun Flora has not clear affinity in neither lateral nor stratigraphic localization, because the fossil remains of characteristic plant species occur in different-age formations on all extent of the volcanogenic belt. The species characteristic for Chaun Flora are indicators of the certain environmental conditions and reflect the peculiarities of the processes of fossilization in the areas of terrestrial volcanism from Turon until Campanian inclusive.

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