Achistrum
| Achistrum | |
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| Genus: | Achistrum Etheridge, 1881
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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.
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