Echinoidea - Clypeasteroida - Protoscutellidae
Full reference: P. M. Kier. 1980. The Echinoids of the Middle Eocene Warley Hill Formation, Santee Limestone, and Castle Hayne Limestone of North and South Carolina. Smithsonian Contributions to Paleobiology 39:1-102
Belongs to Protoscutella mississippiensis according to P. M. Kier 1980
Sister taxon: Protoscutella mississippiensis mississippiensis
Type specimen: Its type locality is Billy B. Fussel Co., Inc. quarry (Castle Hayne LS, N. Carolina), which is in a Bartonian marine grainstone in the Castle Hayne Formation of North Carolina.
Ecology: slow-moving semi-infaunal detritivore
Distribution:
• Eocene of United States (2: North Carolina collections)
Total: 2 collections each including a single occurrence