Part of the Fossils and Strata Series from the Scandinavian University Press

The publication, Deep-sea Benthic Foraminifera from Cretaceous-Paleogene Boundary Strata in the South Atlantic: Taxonomy and Paleoecology, is from an international series on stratigraphy and paleontology

Joen G. V. Widmark is the author of Deep-sea Benthic Foraminifera from Cretaceous-Paleogene Boundary Strata in the South Atlantic: Taxonomy and Paleoecology, published by Wiley.