Fig. 21 in The lambeosaurine dinosaur Amurosaurus riabinini, from the Maastrichtian of Far Eastern Russia

Fig. 21. Stratigraphically−calibrated cladogram of phylogenetic relationships of Lambeosaurinae, including Amurosaurus. Solid symbols indicate stratigraphical occurrence of a taxon, whereas hatched symbols indicate ghost lineages. Asian taxa are underlined. Dates are millions of years before present.