FAMILY ANAPTOMORPHIDÆ 114
1. Microchærus, Wood 115
2. Mixodectes, Cope 116
3. Cynodontomys, Cope 116
4. Omomys, Leidy 117
5. Anaptomorphus, Cope 117
FAMILY ADAPIDÆ 119
1. Adapis, Cuvier 120
2. Tomitherium, Cope 120
3. Laopithecus, Marsh 121
4. Pelycodus, Cope 121
5. Microsyops, Leidy 122
6. Hyopsodus, Leidy 123