| Janis, C.M., 1989. A climatic explanation for patterns of evolutionary diversity in ungulate mammals. Palaeontology 32 (3): 463-481
|
|
| Janis, C.M., 1982. Evolution of horns in ungulates - ecology and palaeoecology. Biological Review (Cambridge Philosophical Society) 57 (2): 261-317
|
|
| Janis, C.M., 1982. Evolution of horns in ungulates - ecology and palaeoecology. Biological Review (Cambridge Philosophical Society) 57 (2): 261-317
|
|
|