Phylogenetic relationships within the lizard clade Xantusiidae: Using trees and divergence times to address evolutionary questions at multiple levels

- Cricosaura diverged from (Lepidophyma + Xantusia) ∼81 Ma.
- Multiple Xantusiid origins of rock-crevice dwelling (and associated morphologies) recovered.
- Unisexuality has clearly evolved at least twice within Lepidophyma.
- The presence of cryptic diversity is revealed in both Xantusia and Lepidophyma.