Temat: malze - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Stratigraphic evidence of a Late Maeotian (Late Miocene) punctuated transgression in the Tanais Palaeobay (northern part of the Eastern Paratethys, South-West Russia)
Autorzy:: Ruban, Dmitry A.
Powiązania:: https://bibliotekanauki.pl/articles/94470.pdf
Data publikacji:: 2010
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:: Late Miocene
Late Maeotian
Eastern Paratethys
transgression
bivalves
późny miocen
późny Maeotian
transgresja
małże
Opis:: The Tanais Palaeobay was located in the northern periphery of the eastern Paratethys Sea during the Late Miocene. New data from the Safianovo section (Rostov Dome, South-West of Russia) confirm that skeletal limestones (coquinites) of the Merzhanovskaja Formation belong to the Congeria (Andrusoviconcha) amygdaloides navicula Zone of the upper Upper Maeotian (the Maeotian is a regional chronostratigraphic unit of the Upper Miocene). Correlation of reference sections of these Upper Maeotian deposits within the Rostov Dome results in pattern of the palaeobay transgression, which was punctuated. The relative importance of local and global controls on this trangsression is not yet clear.
Źródło:: Geologos; 2010, 16, 3; 169-181
1426-8981
2080-6574
Pojawia się w:: Geologos
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The late Silurian-Middle Devonian long-term eustatic cycle as a possible control on the global generic diversity dynamics of bivalves and gastropods
Autorzy:: Ruban, Dmitry A.
Powiązania:: https://bibliotekanauki.pl/articles/94693.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:: bivalves
gastropods
diversity dynamics
origination
extinction
eustatic changes
Silurian
Devonian
małże
ślimaki
powstawanie
wyginięcie
zmiany eustatyczne
Dewon
Opis:: A long-term eustatic cycle (fall and subsequent rise of the global sea level) embraced the late Silurian-Middle Devonian time interval. Potentially, these sea-level changes could drive global biodiversity. The stratigraphic ranges of 204 bivalve genera and 279 gastropod genera included into the famous Sepkoski database allow reconstructing changes in the total diversity and the number of originations and extinctions of these important groups of marine benthic macro- -invertebrates during this interval. None of the recorded parameters coincided with the long-term global sea-level cycle. It cannot be not excluded, however, that the global sea-level changes did not affect the regions favourable for bivalve and gastropod radiation because of regional tectonic mechanisms; neither can it be excluded that the eustatic control persisted together with many other extrinsic and intrinsic controls. Interestingly, the generic diversity of gastropods increased together with a cooling trend, and vice versa. Additionally, the Ludlow, Eifelian, and Givetian biotic crises affected, probably, both fossil groups under study. There was also a coincidence of the relatively high bivalve generic diversity, initial radiation of gastropods and the entire biota, and the diversification of brachiopods with the Early Devonian global sea-level lowstand, and this may be interpreted as evidence of a certain eustatic control on the marine biodiversity.
Źródło:: Geologos; 2013, 19, 3; 193-200
1426-8981
2080-6574
Pojawia się w:: Geologos
Dostawca treści:: Biblioteka Nauki

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