Kier (1977) treated this fragment as indeterminate, but Vadet
(2000), based on a second fragment, created a new species, genus
and family (Kieritiaridae) for it. So little is known about it that
it is indeterminate even to subclass level. It may be conspecific
with the indeterminate fragment described by Bather as
Hemipedina incipiens, and placed by Vadet in another new
Kier, P.M. 1977. Triassic echinoids. Smithsonian
Contributions to Paleobiology 30, 1-88.
Vadet, A. 2001. Revision des echinides de Saint Cassian et
evolution des echinides post-carboniferes. Memoires de la
Societe Academique du Boulonnais 20, 1-116.