| | Page |
|---|
| GEOLOGICAL INTRODUCTION | | [3] |
| | | |
| TOXODON PLATENSIS, Description | of Cranium | [16] |
| | of Lower Jaw and Teeth | [29] |
| | | |
| MACRAUCHENIA PATACHONICA, | Cervical Vertebræ | [35] |
| | Lumbar Vertebræ | [40] |
| | Scapula | [43] |
| | Antibrachium and Fore-foot | [44] |
| | Femur | [48] |
| | Tibia, Astragalus, and Metatarsal Bone | [50] |
| | | |
| GLOSSOTHERIUM, Fragment of Cranium | [57] |
| | | |
| MYLODON DARWINII, Lower Jaw and Teeth | [63] |
| | | |
| SCELIDOTHERIUM LEPTOCEPHALUM, | Cranium and Teeth | [73] |
| | Vertebral Column | [84] |
| | Bones of the Extremities | [88] |
| | | |
| MEGALONYX JEFFERSONII, Lower Jaw | [99] |
| | | |
| MEGATHERIUM CUVIERI, Cranium and Teeth | [100] |
| | | |
| TESSELATED ARMOUR AND BONES, large Edentata | [106] |
| | | |
| MASTODON ANGUSTIDENS, Cuv. (?) | [108] |
| | | |
| EQUUS, Molar Teeth | [108] |
| | | |
| CTENOMYS PRISCUS, and a large Rodent | [109] |
| | | |
| Geological contemporaneity of preceding extinct Mammalia | [111] |