Photographs: Left photo: Basal view of single specimen of Deltocyathus italicus (Michelotti, 1838); specimen USNM 63125, locality USGS 8702 (?Baitoa Formation, Dominican Republic). Right photo: Basal view of specimen MNHNP L 60 from the Miocene of Tortona, Italy.
Photos in Cairns and Wells, 1987, Plate 9, Figs. 11, 12.
Scale bar for both photos = 1.0 mm.