Part of an international series on paleontology and stratigraphyThe publication, The Early Cretaceous (Late Ryazanian - Early Hauretivian) Ammonite Fauna of North-East Greenland, covers Peter Alsen's research in the areas of taxonomy, biostratigraphy and biogeography. The published findings are featured in the Fossils and Strata monograph series.

Part of an international series on paleontology and stratigraphyThe publication, The Early Cretaceous (Late Ryazanian - Early Hauretivian) Ammonite Fauna of North-East Greenland, covers Peter Alsen's research in the areas of taxonomy, biostratigraphy and biogeography. The published findings are featured in the Fossils and Strata monograph series.