| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Records of the Fossil Mammal Sinclairella, Family Apatemyidae, From the Chadronian and Orellan | Clemens, William Alvin | en | Sinclairella dakotensis; Paleontology -- Oligocene; Paleontology -- Colorado -- Logan County; Paleontology -- Nebraska -- Sioux County | 2009-10-20 |