†family Achistridae Frizzell and Exline 1955 (sea cucumber)

Holothuroidea - Apodida - Achistridae

Full reference: D. L. Frizzell and H. Exline. 1955. Monograph of fossil holothurian sclerites. Bulletin of the Missouri University School of Metallurgy and Mines, Technical series 89:1-204

Parent taxon: Apodida according to J. Bohaty and H.-G. Herbig 2010

See also Boczarowski 2001, Deflandre-Rigaud 1962, Frizzell and Exline 1955, Frizzell and Exline 1966, Gilliland 1992, Gilliland 1993, Hampton 1958, Langenheim and Epis 1957, Mostler and Rahimi-Yazd 1976, Pawson 1966, Reich 1999 and Wernlund 1977

Sister taxa: Calcancoridae, Chiridotidae, Holothuriopsis, Myriotrochidae, Myriotrochus, Porachistrum, Synapta, Synaptidae, Synaptitidae, Theeliidae

Subtaxa: Aboculus Achistrum

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Ecology: epifaunal detritivore

Distribution:

• Cretaceous of Poland (1 collection)

• Jurassic of Egypt (3), France (4), Germany (1), India (1), Poland (41), Switzerland (1), the United Kingdom (16)

• Triassic of Austria (2), Hungary (3), Iran (1), Poland (1), Slovakia (1), Slovenia (1), Thailand (1), Turkey (1)

• Permian of Germany (1), Iran (1), United States (4: Kansas, Texas)

• Virgilian of United States (1: Nebraska)

• Carboniferous of United States (10: Arizona, Indiana, Kentucky, Missouri, Montana, Texas)

• Mississippian of Afghanistan (1)

• Devonian of Germany (1), Poland (11)

Total: 109 collections including 161 occurrences

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