Меловой период

Aleksien? A. (2010) Cenomanian–Coniacian Upper Cretaceous foraminiferal fauna of Lithuania // Geologija. 2010. Vol. 52. No. 1–4(69–72). P. 9–15.

pdf: http://www.lmaleidykla.lt/publ/1392-110 ... 4/9-15.pdf