1. College of Earth, Ocean, and Atmospheric SciencesOregon State UniversityCorvallis Oregon USA
2. Department of Geology and Geological EngineeringSouth Dakota School of Mines and TechnologyRapid City South Dakota USA
3. Department of Earth and Planetary SciencesAmerican Museum of Natural HistoryNew York City New York USA
4. Department of Earth SciencesUniversity of OregonEugene Oregon USA