Haeckel, 1862
Diagnosis
Skeleton of numerous hollow spines radiating free (unattached) from the central capsule. Usually with peripheral veil of fine tangential needles. Because the spines are unattached, they often appear isolated or in small groups in samples.
Genera treated:
Genus Aulacantha
Genus Auloceros
Genus Aulographis
Genus Aulographonium
Genus Aulokleptes
Genus Aulospathis