Dr. Jón Eiríksson is Research Professor Emeritus at the Institute of Earth Sciences, University of Iceland. The focus of his research has been the paleooceanography of the Seas north of Iceland, sedimentology and lithostratigraphy, and the geology of Iceland. Dr. Leifur A. Símonarson is Professor Emeritus at the Institute of Earth Sciences, University of Iceland. The focus of his research has been on the Cainozoic marine invertebrate fauna of Iceland and Greenland, and migration patterns and evolution of selected molluscan groups in the Northern Hemisphere.

• Chapter1. A Brief Resumé of the Geology of Iceland.-  Chapter2. The Marine Realm Around Iceland - a Review of Biological Research.- Chapter3. The Evolution of the Tjörnes Sedimentary Basin in Relation to the Tjörnes Fracture Zone and the Geological Structure of Iceland.- Chapter4. A Review of the Research History of the Tjörnes Sequence, North Iceland.- Chapter5. Lithostratigraphy of the Tjörnes Sequence in Barmur and Höskuldsvík on the West Coast of Tjörnes, North Iceland.- Chapter6. An Age Model for the Miocene to Pleistocene Tjörnes Sequence, North Iceland.- Chapter7. Systematic Overview of the Pliocene Molluscs and Barnacles of the Barmur Group on Tjörnes, North Iceland.- Chapter8. Foraminifera in the Pliocene Barmur Group on Tjörnes, North Iceland.- Chapter9. Reconstructing the Palaeoenvironments of the Pliocene Barmur Group in the Tjörnes Basin, North Iceland.- Lithostratigraphy of the Upper Part of the Tjörnes Sequence in Furuvík, Breiðavík, Öxarfjörður, and Central Tjörnes Mountains, North Iceland.- Systematic Overview of the Molluscs and Barnacles of the Quaternary Breiðavík Group, North Iceland.- Chapter12. Foraminifera in the Early Pleistocene Part of the Breiðavík Group, North Iceland Knudsen.- Chapter13. Reconstructing the Palaeoenvironments of the Quaternary Tjörnes Basin, North Iceland.- Chapter14. Migration of Pacific Marine Mollusc Fauna into the North Atlantic Across the Arctic Ocean in Pliocene and Early Pleistocene Time.