1990. Ph D The City University of New York, Graduate Center, Deptm. Biology.
1989. M Sc The City College of City University of New York, Deptm. Biology.
1981. B Sc University of Iceland, Deptm. Biology.
1987-1989. The American Museum of Natural History, Deptm. of Invertebrates Ph. D. Research Associate.
1984, 1986-1989. City University of New York, University Fellowship.
2021-present. The Icelandic Institute of Natural History, Curator of Marine Invertebrates (Foraminifera).
1994-2021. The Icelandic Institute of Natural History, Manager of Systematics and Collections Section &
Curator of Marine Invertebrates (Foraminifera).
1990-1993. Institute of Biology, University of Iceland, Research Scientist and Adjunct Lecturer
1984-1987. CUNY, City College, Ph D Teaching Assistantship.
1982-1984. Institute of Pathology, Keldur, University of Iceland, Research Assistant.
2003-presently. Chairman of a Selection Panel of the Sandgerdi Marine Laboratory – funded by the Improving the Human Potential Programme (IHP) of the European Community.
2000-2001. Member of the organizing committee of the 7th International Polychaete Conference, July 2-6, 2002, Reykjavik, Iceland.
1998-2000. Chairman of a Selection Panel of the Sandgerdi Marine Laboratory – Large Scale Facility, funded by the TMR program of the EU.
1992-present. Head of Taxonomical Research of the BIOICE program, which objectives is to record benthic species of marine invertebrates within the 200 mile economical zone of Iceland (758 000 km2), map their distribution, abundance, and species diversity patterns. Involves co-ordination of 108 systematists and taxonomists from 19 countries.