1. Department of Biodiversity, Earth and Environmental Sciences Drexel University Philadelphia Pennsylvania
2. Coastlines and Oceans Division Florida International University Miami Florida
3. Departamento de Geología Centro de Investigación Científica y de Educación Superior de Ensenada Baja California Mexico
4. Department of Environmental Sciences University of California Riverside Riverside California
5. Department of Earth and Environmental Science New Mexico Institute of Mining and Technology Socorro New Mexico