Figure 1 in Global historical biogeography of hadrosaurid dinosaurs

Figure 1. Reduced strict consensus tree derived from parsimony analysis of hadrosauroid dinosaurs by Prieto-Márquez (2010), showing ancestral area reconstructions for all the nodes. Words between quotation marks are informal names created to facilitate the reference to specific clades throughout the text. Abbreviations: a, North America; b, South America; c, Europe; d, Asia; ab, North and South America; ac, North America and Europe; ad, North America and Asia; cd, Eurasia.