Small element that articulates anteriorly with metatarsal IV. It may be absent in some taxa.[AAO]

NominaAnatomicaVeterinaria uses os cuboideum as an official synonym for distal tarsal IV, but some sources also use this as the label for the human cuboid bone which is regarded to be formed from tarsals IV and V. We therefore decline to use exact syns in either case.

We need to restrict the logical definition such that it is *only* connecting to metatarsal 4

cuboideum, os cuboideum

tarsal 4, distal tarsal 4

uberon

UBERON:0010737

• cuboid bone
• centroquartal bone