Stant, Sharon Audra (2004): Lower Neogene and upper Palaeogene calcareous nannofossil biostratigraphy and age constraints on a middle Eocene hiatus associated with seismic horizon A (super u). International Nannoplankton Association, The Hague, International, In: Cachao, Mario (convener), Marques da Silva, Carlos (convener), Ferreira, Jorge (convener), Lee, Celia (convener), Lees, Jackie (convener), Ribeiro, Bruno (convener), Narciso, Aurea (convener), Guerreiro, Catarina (convener), Oliveira, Anabela (convener), Bizarro, Aurelia (convener), Viana, Marta (convener), Moita, Maria Teresa (convener), Silva, Alexandra (convener), 10th conference of the International Nannoplankton Association; abstracts, 26 (2), 98, georefid:2005-050997