Compared to other synziphosurines with only scarce or no discovery of any evidence of appendages, the appendages of Weinbergina are exceptionally well-preserved in many described fossil materials. Underneath the carapace are small chelicerae and pairs of well-developed, 8-segmented walking legs. Each of the distal leg podomeres (segmental units) bore numerous spines-like projections, forming a snow-shoe-like termination. The opisthosoma possess (possibly 6) pairs of opercula with setose distal regions and possible evidence of book gills.
