Achistrum

{{Short description|Extinct genus of sea cucumbers}} {{Automatic taxobox | image = Achistrum wheeleri.JPG | 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.<ref>[http://app.pan.pl/archive/published/app16/app16-429.pdf Triassic Holothurian Sclerites from Tatra Mountains] Krystyna Zawidzka.</ref> It contains the species ''Achistrum nicholsoni'' and ''Achistrum ludwigi''.

==References== {{Reflist}}

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Category:Apodida Category:Carboniferous echinoderms Category:Triassic echinoderms Category:Fossils of Poland Category:Fossil taxa described in 1881

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