Early Cretaceous aptychus assemblages from the Bersek Hill (Gerecse Mts., Hungary)

by Bérdi, Laura, Pálfy, József, Fözy, István
Source: 1. Fossils-Darwin-Evolution 1. Banská Bystrica : Prírodovedecká fakulta Univerzity Mateja Bela, 2009 1. 9788080838072 1. S. 6