| A Black cottonwood leaf, Populus alexanderi, from the upper Miocene Hunter Creek Sandstone in the vicinity of Verdi, Nevada. The specimen is 65mm long. Photograph originally taken with a Minolta 35mm camera. |
| A Black cottonwood leaf, Populus alexanderi, from the upper Miocene Hunter Creek Sandstone in the vicinity of Verdi, Nevada. The specimen is 65mm long. Photograph originally taken with a Minolta 35mm camera. |