Plesiosorex coloradensis (extinct)
Found in one sample
United States: Martin Canyon Quarry A (Early Miocene)
Size measurements:
| M1 length | 3.3 mm | N = 14 | Wilson 1960 |
| M1 width | 5.0 mm | N = 14 | Wilson 1960 |
| M2 length | 2.3 mm | N = 14 | Wilson 1960 |
| M2 width | 3.6 mm | N = 14 | Wilson 1960 |
| P4 length | 3.3 mm | N = 14 | Wilson 1960 |
| P4 width | 4.4 mm | N = 14 | Wilson 1960 |
| m1 length | 3.9 mm | N = 14 | Wilson 1960 |
| m1 width | 2.5 mm | N = 14 | Wilson 1960 |
| m2 length | 2.9 mm | N = 14 | Wilson 1960 |
| m2 width | 2.3 mm | N = 14 | Wilson 1960 |
| p3 length | 1.8 mm | N = 14 | Wilson 1960 |
| p3 width | 1.2 mm | N = 14 | Wilson 1960 |
| p4 length | 2.4 mm | N = 14 | Wilson 1960 |
| p4 width | 1.4 mm | N = 14 | Wilson 1960 |
See also Plesiosorex, Plesiosorex greeni, Plesiosorex sp.