Microdipodops megacephalus (rodent)
Mass: 11.9 g based on Djawdan and Garland Jr 1988, Hinds and MacMillen 1985, Hinds and Rice-Warner 1992 and Morton et al. 1980
Latitudinal range: 39.5° to 40.1°
Found in two samples
United States: Crystal Ball Cave (Late Pleistocene), Camels Back Cave (Stratum I) (Holocene)
Size measurements:
| body mass | 12.3 g | N = 8 | Djawdan and Garland Jr 1988 |
| body mass | 11.0 g | N = 9 | Hinds and MacMillen 1985 |
| body mass | 11.7 g | N = 4 | Hinds and Rice-Warner 1992 |
| body mass | 13.0 g | N = 6 | Morton et al. 1980 |
| condylobasal length | 20.42 mm | N = 14 | Hafner et al. 1979 |
| hind foot length | 25.00 mm | N = 14 | Hafner et al. 1979 |
| skull length | 28.38 mm | N = 14 | Hafner et al. 1979 |
| skull width | 18.78 mm | N = 14 | Hafner et al. 1979 |
| tail length | 83.00 mm | N = 14 | Hafner et al. 1979 |
| total body length | 148.79 mm | N = 14 | Hafner et al. 1979 |
| upper tooth row length | 2.64 mm | N = 14 | Hafner et al. 1979 |
See also Microdipodops, Microdipodops pallidus