Table 3. Proportional data on ancestral ranges.

Proportions for each geographic area in the ancestral range estimations for the major early squamate nodes (note, neither the columns or rows sum to one, as each cell measures the proportion of ancestral range estimations that contain a specific area versus the proportion of ancestral range estimations that do not contain that area). Areas with substantial support ( >0.5) are in bold. For Scincomorpha, a proportion equal to 1 for Eurasia represents a nodal constraint based on fossil data.

Taxon	Africa	Arabia	Australia	Caribbean	Eurasia	India	North America	South America	Sunda
Squamata	0.50	0.05	0.48	0.06	0.89	0.09	0.45	0.16	0.61
Unidentata	0.31	0.01	0.02	0.01	0.91	0.02	0.14	0.09	0.10
Episquamata	0.17	0.00	0.00	0.01	0.88	0.00	0.08	0.10	0.02
Toxicofera	0.22	0.00	0.00	0.01	0.87	0.01	0.04	0.11	0.03
Dibamia	0.04	0.03	0.07	0.03	0.63	0.03	0.65	0.04	0.99
Gekkota	0.83	0.01	0.96	0.05	0.78	0.09	0.39	0.19	0.47
Scincomorpha	0.86	0.03	0.04	0.01	1.00	0.06	0.26	0.01	0.21
Laterata	0.19	0.01	0.01	0.01	0.91	0.01	0.31	0.50	0.01
Anguimorpha	0.11	0.03	0.04	0.01	0.99	0.03	0.19	0.01	0.18
Iguania	0.26	0.01	0.01	0.08	0.88	0.01	0.15	0.16	0.03
Serpentes	0.91	0.01	0.04	0.08	0.58	0.11	0.07	0.88	0.40