1-3- Spongocore puella Haeckel; 1, mantle lacking, VS-R-71a, 1-3cm, V23/4, 300x; 2, mantle rudimentary, VS-R-71a, 1-3cm, Q12/0, 300x; 3, mantle complete, VS-R-71a, 1-3cm, N26/4, 300x.
4-5- Spongurus cf. elliptica (Ehrenberg); 4, VS-R-27b, 1-3cm, T52/2, 300x; 5, VS-R-27b, 1-3cm, X29/2, 300x.
6-7- Spongoliva cf. ellipsoides Popofsky; 6, outer shell complete, VS-R-133b, 1-3cm, C37/2, 300x; 7, incompletely developed specimen, VS-R-64a, 1-3cm, R15/4, 300x.
8-13- Zygocampe chrysalidium Haeckel; 8, medullary shells as viewed down polar axis of incompletely developed specimen, VS-R-27b, 1-3 cm, E45/0, 300x; 9, basic cortical shell lacking polar caps and outer mantle, VS-R-71a, 1-3cm, X19/0, 300x; 10, basic cortical shell with spines but lacking polar caps, VS-R-27b, 1-3cm, T32/1, 300x; 11, polar caps present but outer mantle lacking, VS-R-56b, 1-3cm, P50/0, 300x; 12, polar caps and lateral spines present but outer mantle lacking, VS-R-71a, 1-3cm, G19/2, 300x; 13, polar caps and incomplete outer mantle,VS-R-56a, 1-3cm, F49/0, 300x.