. . "Stegomastodon"@en . . "fossil" . . . "Stegomastodon ('roof breast tooth') is an extinct genus of gomphothere, a family of proboscideans. It is not to be confused with the genus Mammut from a different proboscidean family, whose members are commonly called \"mastodons\", nor with the genus Stegodon, from yet another proboscidean subfamily, whose members are commonly called \"stegodonts\"."@en . . . .