Refinements in biostratigraphy of the foraminiferal zone MFZ11 (late early Viséan, Mississippian) in the Cebeciköy Limestone (Istanbul Terrane, NW Turkey) and palaeogeographic implications
Bulletin of Geosciences, cilt.88, sa.3, ss.621-645, 2013 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 88 Sayı: 3
- Basım Tarihi: 2013
- Doi Numarası: 10.3140/bull.geosci.1387
- Dergi Adı: Bulletin of Geosciences
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.621-645
- Anahtar Kelimeler: Algae incertae sedis, Biostratigraphy, Foraminiferal zone MFZ11, Foraminifers, Istanbul Terrane, Palaeogeography, Systematics, Turkey, Viséan
- Ankara Hacı Bayram Veli Üniversitesi Adresli: Evet
Özet
The Cebeciköy Limestone from the Variscan flysch of the İstanbul Terrane is assigned to the foraminiferal MFZ11 zone (late early Viséan, formerly V2a). This zone is essentially the range zone of Uralodiscus rotundus. Additional bioevents are proposed for characterizing the upper part of this biozone (MFZ11B subzone): the LAD of Eoendothyranopsis and the FAD of Pararchaediscus and Conilidiscus. The majority of foraminifers and algae, belonging locally to MFZ11 are well-known, except for the following taxa: Issinella luteotubulifomis sp. nov., I. enormis sp. nov., Vicinesphaera parasqualida sp. nov., Planogloboendothyra modesta sp. nov. and Endothyra irinaeformis sp. nov. The Istanbul Terrane is connected with the southern branch of the Palaeotethys, whereas the Zonguldak Terrane is connected with the northern branch of this one.