New didemnid ascidian spicule records calibrated to the nannofossil data chronostratigraphically in the Quaternary marine deposits of Lake İznik (NW Turkey) and their paleoenvironmental interpretations

Autor: Sagular, Enis Kemal, Yümün, Zeki Ünal, Meriç, Engin
Zdroj: In Quaternary International 30 August 2018 486:143-155
Databáze: ScienceDirect