Genus
Lithoplaision Diblin, Randazzo et Jones, 1991
Taxon description
Diblin et al., 1991
Diagnosis: Large, elongate, conical to subcylindrical, unbranched linear burrows that possess a central axial tube approximately one-half the overall diameter, and a thickened surrounding wall having irregular internal and external surfaces lacking external ornamentation and internal structure or laminations; orientation is vertical or nearvertical.
Classification