Holothuroidea - Apodida - Achistridae
Alternative combinations: Achistrum (Achistrum) ludwigi, Ancistrum ludwigi
Full reference: C. Croneis and J. McCormack. 1932. Fossil Holothuroidea. Journal of Paleontology 6(2):111-148
Belongs to Achistrum according to K. Zawidzka 1971
See also Croneis and McCormack 1932, Deflandre-Rigaud 1952, Gutschick 1959, Hampton 1958 and Summerson and Campbell 1958
Sister taxa: 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 monochordata, Achistrum multiperforatum, Achistrum nicholsoni, Achistrum permianum, Achistrum pulchrum, Achistrum triassicum, Achistrum tuto, Achistrum varicum
Type specimen: Its type locality is Claypit, Bridgeport, Wise County, which is in a Missourian marine claystone in the Graford Formation of Texas
Ecology: epifaunal detritivore
Distribution:
• Triassic of Poland (1 collection)
• Carboniferous of United States (3: Indiana, Kentucky, Texas)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.