Delphinus, European Pliocene, 112

Dendrocygna, European Miocene, 162

Desman of S. Russia, figure of, 219

Diceratherium, N. American Tertiary, 137

Dichobune, European Eocene, 126

Dicotyles, N. American Post-Pliocene, 130

N. American Tertiary, 137

in Brazilian caves, 144

S. American Pliocene, 146

birthplace and migrations of, 155