Fig. 4.[5] -+-----+-----+------------------------------- | | | Rad. Art. Mol. Silurian. | | | | | | | Fishes. -+-----+-----+-----+------------------------- | | | | Old Red. | | | | | | | | | Reptiles. -+-----+-----+-----+-----+------------------- | | | | | Carboniferous. | | | | | | | | | | -+-----+-----+-----+-----+------------------- Permian. | | | | | -+-----+-----+-----+-----+------------------- Triassic. | | | | | -+-----+-----+-----+-----+------------------- | | | | | | Birds. Oolitic. | | | | | | : Mammals. | | | | | | : -+-----+-----+-----+-----+-----+-----+------- | | | | | | : Cretaceous. | | | | | | : | | | | | | : -+-----+-----+-----+-----+-----+-----+------- | | | | | | | Pla. Mam. Tertiary. | | | | | | | | | | | | | | | | | | | | | -+-----+-----+-----+-----+-----+-----+-----+- Recent. | | | | | | | | Man. -+-----+-----+-----+-----+-----+-----+-----+- Geologic [Rad. Art. Mol. Fish. Rep. Bird. Mam. Man.] Arrangement. Cuvier's [Rad. Art. Mol. Fish. Rep. Bird. Mam. Man.] Arrangement. THE GENEALOGY OF ANIMALS.]