Small biprismatocellitriacontadiadispenteract

The small biprismatocellitriacontadiadispenteract, or sibcotdin, is a nonconvex uniform polyteron. It consists of 80 square-hexagonal duoprisms, 40 small cubicuboctahedral prisms, 32 great rhombated pentachora, 10 small cubihexadecadisoctachora, and 10 great disprismatotesseractihexadecachora. 1 small cubihexadecadisoctachoron, 1 small cubicuboctahedral prism, 1 great rhombated pentachoron, 1 square-hexagonal duoprism, and 2 great disprismatotesseractihexadecachora join at each vertex.

Vertex coordinates
Its vertices are the same as its regiment colonel, the celligreatorhombated triacontaditeron.