List of Tables 



1 . The iguanine genera, 2 



2. Position of the parietal foramen, 32 



3. Numbers of premaxillary teeth, 60 



4. Numbers of presacral vertebrae, 7 1 



5. Distributions of character states of 95 characters among four outgroups to iguanines 

 and the polarities that can be inferred from them, 108 



6. Distributions of character states of 95 characters among eight iguanine taxa, 112 



7. Distributions of character states of 29 characters used in the preliminary analysis, 118 



8. Polarity inferences for lower-level analysis, using Brachylophus and Dipsosaurus as 

 outgroups, 124 



9. Distributions of character states of 26 characters among six taxa within Iguanini, 125 



10. Distributions of character states of 19 characters among basic taxa within Ctenosaura 

 (in the broad sense) and three close and two more distant outgroups, 153 



11. Summary of polarity inferences for seven cases of character-state distribution among 

 four outgroups of uncertain relationships to the ingroup, 181 



12. Summary of polarity inferences for four cases of character-state distribution among 

 two outgroups of uncertain relationships to the ingroup, 1 85 



13. Summary of polarity inferences for six cases of character-state distribution among two 

 near outgroups whose precise relationships to the ingroup are unresolved, and one 

 more remote outgroup exhibiting a fixed character state, 1 87 



