Poems of evolution

by Langdon Smith

NOTES TO “SIMILAR CASES”

[Tertiary Rocks.] It is in the rocks of this period that the fossils of the various extinct primitive quadrupeds are found.

[Eohippus.] An Eocene perissodactyl with four anterior and three posterior digits apparently allied to the Hyracotherium ancestors of horse-like animals.

[Dinoceras.] A gigantic mammal of elephantine form, having three pairs of protuberances on the upper surface of his head.

[Coryphodon.] A fossil mammal somewhat resembling the hippopotamus.

[Loxolophodon.] An extinct mammal with obliquely crested molars.

[Mastodon.] An extinct elephant larger but similar in form to existing species.

[Neolithic.] Belonging to the later stone age, when first indication of polished stone weapons and implements of agriculture began to appear.

[Mammoths.] A very large extinct Pleistocene elephant with coarse outer hair and close woolly under hair and enormous tusks usually much curved.