| mhorn | Дата: Friday, 02.11.2012, 18:14 | Сообщение # 1 |
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| Ustinova M.A. (2012) Foraminifers and stratigratigraphy of Middle Oxfordian – Lower Kimmeridgian of Kostroma region (Mikhalenino section) // Bull. Soc. Natur. Moscow, sect.geol. V.87. no.3. P.43-52.
pdf: http://rogov.zwz.ru/Ustinova,2012_Mikhalenino_forams.pdf
The Oxfordian and Kimmeridgian foraminifers from the Mikhalenino section (Kostroma Region, European Russia) studied for the first time. Several foraminiferal zones are established: Ophthalmidium sagittum – Epistomina volgensis, Opthalmidium strumosum –Lenticulina brestica, Epistomina uhligi – Lenticulina russiensis, Epistomina praetatariensis – Lenticulina kuznetsovae. The middle-upper Oxfordian and lower Kimmeridgian clays contain planktonic Globuligerina. The correlation with close Makariev section is given and comparison with zonation on ammonites is discussed.
Middle Jurassic - Lower Cretaceous ammonites & aptychi
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