| Taxon | Achistrum |
|---|---|
| Authority | Etheridge, 1881 |
Achistrum is an extinct genus of sea cucumber which existed in Poland during the Triassic period, and the United States during the Carboniferous period.[1] It contains the species Achistrum nicholsoni and Achistrum ludwigi.
References
- ^ Triassic Holothurian Sclerites from Tatra Mountains Krystyna Zawidzka.