| Publication Type: | Journal Article |
| Year of Publication: | 1933 |
| Authors: | J. W. Wells |
| Journal: | Bulletins of American Paleontology |
| Volume: | 18 |
| Pagination: | 83–292, pl. 1–16 |
| Keywords: | RCBS, SDC, TIP |
| URL: | http://archive.org/details/bulletinsofameri186467193133pale |