Figure 5.  Phylogenetic relationships of extant scorpion families as proposed by Lourenco (1985). I have indicated the known larval orientation patterns for each taxon to the right of the cladogram.

Figure 6.  Phylogenetic relationships of extant scorpion families as proposed by Stockwell (1988). I have indicated the known larval orientation patterns for each taxon to the right of the cladogram.

Figure 7.  Phylogenetic relationships of extant scorpion families as proposed by Stockwell (1990). I have indicated the known larval orientation patterns for each taxon to the right of the cladogram.

Figure 8.  Phylogenetic relationships of extant scorpion families as proposed by Stockwell (1996). I have indicated the known larval orientation patterns for each taxon to the right of the cladogram.