New echinoids from the Ripley group of Mississippi
| Image |  |
|---|---|
| Description | Chicago: Field Museum of Natural History , 1909. |
| Author/s |
author: Field Museum of Natural History Arthur Ware Slocom Oliver C. Farrington |
| Publication date | 1909 |
| Language | English |
| Country of origin | |
| Wikipedia link | |
| Access work | |
| Copyright status |
public domain in United States. public domain in countries with 80 years pma or shorter. |
| Missing/wrong data? | Edit Wikidata item |