1. Department of Integrative Biology; University of South Florida, 4202 E. Fowler Avenue; SCA110, Tampa FL 33620 USA
2. Département d'Ecologie et de Gestion de la Biodiversité; Muséum National d’ Histoire Naturelle; Paris France
3. Evolutionary Morphology of Vertebrates; Ghent University; K.L. Ledeganckstraat 35 B-9000 Gent Belgium
4. Department of Biology; University of California; 900 University Avenue Riverside CA 92521 USA