Phylogenetic evidence for recent diversification of obligate coral-dwelling gobies compared with their host corals

- The coral reef-dwelling genus Gobiodon diversified within the last 10 My.
- Acroporid hosts of Gobiodon fishes have radiated since the Eocene (49 Mya).
- Despite a mutualistic association Gobiodon fishes did not co-speciate with corals.
- Testing dates of diversification is fundamental before assuming co-speciation.
- Phylogenetics of Gobiodon differ in part with previous morphological analyses.