Thoracosphaera imperforata

"imperforata" Kamptner, 1955, p.37,66-71; pl.8, fig.98. Holotype: Kamptner, 1955, pl.8, fig.98. Taxonomic senior synonym: Syracosphaera (as and now Thoracosphaera) heimii, according to Fütterer (1978, p.714). Age: extant.