Figure 5

Ancestral character-state mapping on the combined hypothesis of Algansea. A) 1. orientation of mouth; B) 2. maxillary barbels and 3. gill rakers; C) 4. supraetmoid anterior margin and 5. Epiotic bones; D) 6. supraethmoid orientation; E) 7. standard length; F) 8. gut flexure; and G) 9. Neurocranium dome. All character-state codes were based on Barbour and Miller (1978), except supraethmoid orientation, which was based on Jensen and Barbour (1981), and standard length, which was recoded in the present study.