Table 1

List of characters: 1, mineralized endoskeleton; 2, jaws; 3, paired fins; 4, eyestalk; 5, trochlearis-innervated oblique eye muscle anterodorsal in position; 6, internal gill arch; 7, paired nasal sacs; 8, otoliths; 9, braincase; 10, ring of armour; 11, dermal fin spines; 12, fin rays; 13, prismatic cartilage; 14, W-shaped muscle; 15, anterior facing dorsal muscle limb; 16. hypaxial division of muscles and 17, chevron-shaped muscle blocks. (All character states coded as: 0, absent and 1, present.)

taxa/character1234567891011121314151617
Hyperoartia00000000000001100
Ostracoderm1000000000000000?
Placodermi11110100010001100
Chondrichthyes01111110000011011
Acanthodii011??111101000?11
Osteichthyes01111111100101111