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Hemimastodon crepusculi; (Pilgrim): the eternal problem of homology and of convergence. 1988. Tassy, P. 1988. Le statut systématique de l’espèce Hemimastodon
使用|accessdate=需要含有|url= (帮助) Kyle Blackburn. The mth Ratio Convergence Test and Other Unconventional Convergence Tests (PDF). University of Washington College of