Classification of the genus Achistrum
G. †Achistrum Etheridge 1881
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†Achistrum beckmanni Kozur and Mostler 1971
†Achistrum brevis Mostler 1971
†Achistrum brevis Gutschick 1959
†Achistrum coloculum Gutschick et al. 1967
†Achistrum frizzelli Langenheim and Epis 1957
†Achistrum gamma Hodson et al. 1956
†Achistrum issleri Croneis and McCormack 1932
†Achistrum longirostrum Mostler 1971
†Achistrum ludwigi Croneis and McCormack 1932
†Achistrum monochordata Hodson et al. 1956
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Invalid names: Achistrum bartensteini Frizzell and Exline 1955 [synonym], Achistrum bichordata Fletcher 1962 [synonym], Calcligula huckei Frizzell and Exline 1955 [synonym]
†Achistrum multiperforatum Beckmann 1965
†Achistrum nicholsoni Etheridge 1881
†Achistrum permianum Spandel 1898
†Achistrum pulchrum Kozur 1969
†Achistrum triassicum Frizzell and Exline 1955
†Achistrum tuto Boczarowski 2001
†Achistrum varicum Boczarowski 2001
Invalid names: Achistrum (Achistrum) Hampton 1958 [invalid subgroup], Achistrum (Aduncrum) Hampton 1958 [invalid subgroup], Achistrum (Cancellrum) Hampton 1958 [invalid subgroup], Achistrum (Spinrum) Hampton 1958 [invalid subgroup], Ancistrum Bather 1900 [synonym]