New overviews on paleogeographical distribution of the species of Loftusia (foraminifera) in the Tethyan Ocean of Maastrichtian (Late Cretaceous) Loftusia (foraminifer) turlerinin Maastrihtiyen (Gec Kretase) Tetis Okyanusu'ndaki paleocografik yayilimi uzerine yeni gorusler

Meriç E., ERSOY S., GÖRMÜŞ M.

Yerbilimleri, sa.22, ss.79-93, 1999 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 1999
  • Dergi Adı: Yerbilimleri
  • Derginin Tarandığı İndeksler: Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.79-93
  • Anahtar Kelimeler: Loftusia, Maastrichtian, Paleogeography, Tethyan
  • Ankara Üniversitesi Adresli: Hayır

Özet

This study includes paleogeographical re-evaluation of various Loftusia species known to exist mainly in the Middle East Countries (Late Cretaceous-Maastrichtian) in the lights of plate tectonic theory. Besides, it also discusses similarities and differences of various species in the small plates of the two giant continents in place and time. In taking the species variety and their abundance in the various platforms into the consideration, salinity and temperature, on the another hand, living near the equator, affected the abundance and size of Loftusia species. Smaller forms occurred at the end of the Late Maastrictian and the stratigraphical range of the Loftusia species in Turkey is from Middle to Upper Maastrichtian. In addition, it is also thought that tiny ophiolitic rock fragments within the Loftusia tests were related to the ophiolitic movements and substrate features during the Late Maastrichtian.