Stratigraphy and lithology
Section editor – PhD in geology and mineralogy Kirichkova A.I.
| Article # 26_2008 | displayed on website on 06/04/2008 |
| 6 p. | Zhuravlev A.V. |
| Paleogeographic occurrence and stratigraphic significance of the Gondolelloides genus representatives (conodonts, Late Paleozoic) | |
| Conodonts are of great importance in the biostratigraphy of Lower Permian deposits.
Gondolelloides
is one of the conodont genera typical for the Asselian-Sakmarian interval, Northern cool-water province. At present, the representatives of this genus are found in the different-phase deposits in nine sequences in Northern America, in two sequences in the Novaya Zemlya, in one well in the east of the Timan-Pechora province, in one sequence in Polyarny Urals and in two sequences in Southern Urals. All these finds of the
Gondolelloides
representatives are confined to the Upper Carbonaceous Upper Gzhelian stage in southern Urals and to the Upper Asselian - Lower Sakmarian stage in other regions. It is not improbable that the center of
Gondolelloides
origin was located in the southern part of the Paleourals basin from which they subsequently spread in more northern and western regions including the eastern shelves of Panthalassa. The above data show that using the representatives of the
Gondolelloides
genus for interregional and global correlations is not reliable. However
Gondolelloides
may be used for local and intrabasin correlations.
Key words: conodonts, Gondolelloides, Late Paleozoic, paleobiogeography |
|
| article citation | Zhuravlev A.V. Paleogeographic occurrence and stratigraphic significance of the Gondolelloides genus representatives (conodonts, Late Paleozoic) // Neftegazovaya Geologiya. Teoriya I Praktika. – 2008. - V.3. - #2.- http://www.ngtp.ru/rub/2/26_2008.pdf |