Holothuroidea - Apodida - Achistridae

Alternative combination: Achistrum (Cancellrum) gamma

Full reference: F. Hodson, B. Harris, and L. Lawson. 1956. Holothurian spicules from the Oxford clay of Redcliff, near Weymouth (Dorset). Geological Magazine 93(4):336-344

Belongs to Achistrum according to A. S. Henderson et al. 1992

Sister taxa: Achistrum beckmanni, Achistrum brevis, Achistrum brevis, Achistrum coloculum, Achistrum frizzelli, Achistrum issleri, Achistrum longirostrum, Achistrum ludwigi, Achistrum monochordata, Achistrum multiperforatum, Achistrum nicholsoni, Achistrum permianum, Achistrum pulchrum, Achistrum triassicum, Achistrum tuto, Achistrum varicum, Achistrum (Achistrum) brownwoodensis, Achistrum (Cancellrum) bicordata, Achistrum (Cancellrum) pilgrimi, Achistrum (Cancellrum) meltonensis, Achistrum (Cancellrum) britanica, Achistrum (Cancellrum) warboysensis, Achistrum (Cancellrum) trichordata, Aduncrum cordatum

Ecology: epifaunal detritivore