1. Department of Lithospheric Research University Vienna Althanstrasse 14 1090 Vienna Austria
2. Institut für Geologie und Mineralogie University Cologne Zülpicher Strasse 49a 50674 Cologne Germany
3. Irish Centre for Research in Applied Geosciences (iCRAG) UCD School of Earth Sciences University College Dublin Belfield Dublin 4 Ireland
4. Steinmann‐Institut of Geology, Mineralogy and Palaeontology University of Bonn Poppelsdorfer Schloss 53115 Bonn Germany
5. Geochronology Laboratory Instituto de Geociências Universidade de Brasília 70910‐900 Brasília DF Brazil
6. Natural History Museum Burgring 7 A‐1010 Vienna Austria