Achistrum | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Holothuroidea |
Order: | Apodida |
Family: | † Achistridae |
Genus: | †
Achistrum 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.