Achistrum Etheridge 1881 (sea cucumber)

Holothuroidea - Apodida - Achistridae

Synonym: Ancistrum Bather 1900

Full reference: R. Etheridge. 1881. On the presence of scattered skeletal remains of Holothuroidea in the Carboniferous limestone series of Scotland. Proceeding of the Royal Physical Society of Edinburgh 6:183-198

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

See also Boczarowski 2001, Croneis and McCormack 1932, Deflandre-Rigaud 1952, Deflandre-Rigaud 1962, Fletcher 1962, Frizzell and Exline 1966, Garbowska and Wierzbowski 1967, Gilliland 1992, Górka and Luszczewska 1969, Gutschick 1959, Gutschick et al. 1967, Hampton 1958, Henderson et al. 1992, Kalita et al. 2002, Kornicker and Imbrie 1958, Kozur and Mostler 1971, Krainer and Mostler 1997, Langenheim and Epis 1957, Mostler 1971, Mostler 1971, Mostler and Rahimi-Yazd 1976, Reich 1999, Said and Barakat 1958, Sepkoski 2002, Soodan 1986, Soodan and Whatley 1987, Summerson and Campbell 1958, Wernlund 1977 and Zawidzka 1971

Sister taxon: Aboculus

Subtaxa: Achistrum (Achistrum) Achistrum (Aduncrum) Achistrum (Cancellrum) Achistrum (Spinrum) Achistrum beckmanni Achistrum brevis Achistrum brevis Achistrum coloculum Achistrum frizzelli Achistrum gamma Achistrum issleri Achistrum longirostrum Achistrum ludwigi Achistrum monochordata Achistrum multiperforatum Achistrum nicholsoni Achistrum permianum Achistrum pulchrum Achistrum triassicum Achistrum tuto Achistrum varicum

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Type: Achistrum nicholsoni

Ecology: epifaunal detritivore

Distribution:

• Cretaceous of Poland (1 collection)

• Jurassic of Austria (2), 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)

• Carboniferous of Afghanistan (1), United States (11: Arizona, Indiana, Kentucky, Missouri, Montana, Nebraska, Texas)

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

Total: 111 collections including 165 occurrences

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