Classification of the species Gomphotherium obscurum

Gomphotherium obscurum Leidy 1869
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Invalid names: Gomphotherium calvertensis Gazin and Collins 1950 [synonym], Gomphotherium cimarronis Hay 1925 [synonym], Gomphotherium cingulatum Downs 1951 [synonym], Serridentinus fricki Peterson 1928 [synonym], Serridentinus progressus Osborn 1923 [synonym], Trilophodon giganteus Osborn 1921 [synonym], Trilophodon riograndensis Frick 1933 [synonym], Trilophodon simplicidens Osborn 1923 [synonym], Trilophodon simpsoni Stirton 1939 [synonym], Trobelodon taoensis Frick 1933 [synonym]