| Publication Type: | Book Chapter |
| Year of Publication: | 1956 |
| Authors: | J. W. Wells |
| Editor: | R. C. Moore |
| Book Title: | Treatise on Invertebrate Paleontology |
| Pagination: | F328 - F444 |
| City: | Lawrence, Kansas |
| URL: | http://sdrv.ms/WzVG94 |
| Publication Type: | Book Chapter |
| Year of Publication: | 1956 |
| Authors: | J. W. Wells |
| Editor: | R. C. Moore |
| Book Title: | Treatise on Invertebrate Paleontology |
| Pagination: | F328 - F444 |
| City: | Lawrence, Kansas |
| URL: | http://sdrv.ms/WzVG94 |